Geneve CRU definitions - Revision history

Tim: Updated 1EF6 notes

2021-01-04T23:00:43Z

Updated 1EF6 notes

← Older revision		Revision as of 23:00, 4 January 2021
Line 245:		Line 245:
	\|}		\|}

	{\| style="width:70%; margin-top:3ex"		{\| style="width:80%; margin-top:3ex"
	\|-		\|-
	\| colspan="2" style="background-color:lightgray; text-align:center" \| Special		\| colspan="2" style="background-color:lightgray; text-align:center" \| Special
Line 254:		Line 254:
	\|}		\|}

	{\| style="width:70%; margin-top:3ex"		{\| style="width:80%; margin-top:3ex"
	\|-		\|-
	\| colspan="4" style="background-color:lightgray; text-align:center" \| TMS9995		\| colspan="4" style="background-color:lightgray; text-align:center" \| TMS9995
Line 321:		Line 321:
	\| 11		\| 11
	\| 0		\| 0
	\| Direct mode (/Mapper mode)		\| Direct mode (/Mapper mode) (page F8 locked into >0000->1fff)
	\|-		\|-
	\| 1EF8		\| 1EF8

Mizapf: /* Definitions */

2015-08-21T13:41:26Z

Definitions

← Older revision		Revision as of 13:41, 21 August 2015
Line 359:		Line 359:

	Obviously these flag bits only make sense when used as outputs. Storing bits for later reading can be done better within the CPU RAM.		Obviously these flag bits only make sense when used as outputs. Storing bits for later reading can be done better within the CPU RAM.


	The PFM512 boot device modification replaces the standard 16KiB 28-pin boot EPROM with a 512KiB 32-pin Atmel 29c040 flash chip. The chip is visible in four 128KiB banks residing at memory pages 0xf0 - 0xff. Each page is selected via two re-purposed (normally unused) 9901 outputs:

	~~{\| style="width:70%; margin-top:3ex"~~
	\|-
	~~\| colspan="4" style="background-color:lightgray; text-align:center" \| PFM512 Bank Selection~~
	\|-
	~~\| style="width:15%; font-weight:bold" \| cru 0x28~~
	~~\| style="width:15%; font-weight:bold" \| cru 0x3A~~
	~~\| style="width:15%; font-weight:bold" \| Bank~~
	~~\| style="font-weight:bold" \| Notes~~
	\|-
	~~\| 0~~
	~~\| 0~~
	~~\| Bank 0 Default~~
	~~\| Boot code and Operating System~~
	\|-
	~~\| 0~~
	~~\| 1~~
	~~\| Bank 2~~
	~~\| Flashdisk bank #1~~
	\|-
	~~\| 1~~
	~~\| 0~~
	~~\| Bank 1~~
	~~\| Flashdisk bank #2~~
	\|-
	~~\| 1~~
	~~\| 1~~
	~~\| Bank 3~~
	~~\| Flashdisk bank #3~~
	\|}

	== Usage ==		== Usage ==

Mizapf: /* Definitions */

2015-08-21T13:40:40Z

Definitions

← Older revision		Revision as of 13:40, 21 August 2015
Line 165:		Line 165:
	\| 0		\| 0
	\| -		\| -
	\| PFM512 bank-switch 1 of 2		\| [[Programmble Flash Memory Expansion \| PFM512]] bank-switch 1 of 2
	\|-		\|-
	\| 002A		\| 002A
Line 228:		Line 228:
	\| 0		\| 0
	\| Connected to GND		\| Connected to GND
	\| PFM512 bank switch 2 of 2		\| [[Programmble Flash Memory Expansion \| PFM512]] bank switch 2 of 2
	\|-		\|-
	\| 003C		\| 003C

Mizapf: /* Definitions */

2015-08-21T13:38:07Z

Definitions

Show changes

Stephen Shaw: remove link for word with no page and no obvious page content required. Possibly in error.

2014-10-08T09:42:15Z

remove link for word with no page and no obvious page content required. Possibly in error.

← Older revision		Revision as of 09:42, 8 October 2014
Line 341:		Line 341:
	\| 0		\| 0
	\| 0		\| 0
	\| Bank 0 [[Default]]		\| Bank 0 Default
	\| Boot code and Operating System		\| Boot code and Operating System
	\|-		\|-

Tim: /* Definitions */

2014-09-06T05:47:11Z

Definitions

@@ Line 141: / Line 141: @@
 | 0028
 | 20
-| -
+| - (out)
 | 0
-| -
+|  (PFM512 bank-switch 1 of 2)
 |-
 | 002A
@@ Line 195: / Line 195: @@
 | 003A
 | 29
-| in
+| in (out)
 | 0
-| Connected to GND
+| Connected to GND  (PFM512 bank switch 2 of 2)
 |-
 | 003C
@@ Line 326: / Line 326: @@
 Obviously these flag bits only make sense when used as outputs. Storing bits for later reading can be done better within the CPU RAM.
 == Usage ==

Mizapf at 16:49, 9 November 2011

2011-11-09T16:49:46Z

← Older revision		Revision as of 16:49, 9 November 2011
Line 71:		Line 71:
	\| int		\| int
	\| 1		\| 1
	\| /Keyboard ~~Interrupt~~		\| [[Geneve keyboard control\|/Keyboard scancode available]]
	\|-		\|-
	\| 0012		\| 0012
Line 273:		Line 273:
	\| 8		\| 8
	\| 1		\| 1
	\| Keyboard ~~clock enable~~		\| [[Geneve keyboard control\|Keyboard control]]
	\|-		\|-
	\| 1EF2		\| 1EF2
	\| 9		\| 9
	\| 1		\| 1
	\| ~~Clear~~ keyboard ~~input register~~		\| [[Geneve keyboard control\|Keyboard control]]
	\|-		\|-
	\| 1EF4		\| 1EF4

Mizapf at 12:54, 17 October 2011

2011-10-17T12:54:05Z

← Older revision		Revision as of 12:54, 17 October 2011
Line 268:		Line 268:
	\| 7		\| 7
	\| 0		\| 0
	\| ~~not used~~		\| CapsLock flag
	\|-		\|-
	\| 1EF0		\| 1EF0

Mizapf at 11:05, 15 October 2011

2011-10-15T11:05:05Z

← Older revision		Revision as of 11:05, 15 October 2011
Line 379:		Line 379:

	This enables the keyboard clock, not clearing the input register, activating TI mode and mapping, cartridges have 8K, no write protection to 6xxx and 7xxx, and no wait states.		This enables the keyboard clock, not clearing the input register, activating TI mode and mapping, cartridges have 8K, no write protection to 6xxx and 7xxx, and no wait states.
			[[Category:Geneve]]

Mizapf at 19:04, 21 September 2011

2011-09-21T19:04:07Z

← Older revision		Revision as of 19:04, 21 September 2011
Line 9:		Line 9:
	''/signal'' means negative logic. The first column is the base address for the respective bit if that bit is addressed without offset. You see that the base address is shifted one bit position to the left. Thus, setting R12 to >0004 and accessing bit 0 is the same as setting R12 to >0000 and accessing bit 2.		''/signal'' means negative logic. The first column is the base address for the respective bit if that bit is addressed without offset. You see that the base address is shifted one bit position to the left. Thus, setting R12 to >0004 and accessing bit 0 is the same as setting R12 to >0000 and accessing bit 2.

	{\| style="width:50%; padding-top:3em"		{\| style="width:70%; padding-top:3em"
	\|-		\|-
	\| colspan="5" style="background-color:lightgray; text-align:center" \| TMS 9901		\| colspan="5" style="background-color:lightgray; text-align:center" \| TMS 9901
	\|-		\|-
	\| style="width:15%" \| Address		\| style="width:15%; font-weight:bold" \| Address
	\| style="width:15%" \| Bit		\| style="width:15%; font-weight:bold" \| Bit
	\| style="width:15%" \| Kind		\| style="width:15%; font-weight:bold" \| Kind
	\| style="width:10%" \| Default		\| style="width:10%; font-weight:bold" \| Default
	\| Meaning		\| style="font-weight:bold" \| Meaning
	\|-		\|-
	\| 0000		\| 0000
Line 212:		Line 212:
	\|}		\|}

	{\| style="width:50%; margin-top:3ex"		{\| style="width:70%; margin-top:3ex"
	\|-		\|-
	\| colspan="2" style="background-color:lightgray; text-align:center" \| Special		\| colspan="2" style="background-color:lightgray; text-align:center" \| Special
Line 221:		Line 221:
	\|}		\|}

	{\| style="width:50%; margin-top:3ex"		{\| style="width:70%; margin-top:3ex"
	\|-		\|-
	\| colspan="3" style="background-color:lightgray; text-align:center" \| TMS9995		\| colspan="4" style="background-color:lightgray; text-align:center" \| TMS9995
	\|-		\|-
	\| style="width:15%" \| ~~1EE0~~		\| style="width:15%; font-weight:bold" \| Address
	\| style="width:15%" \| 0		\| style="width:15%; font-weight:bold" \| Bit
			\| style="width:15%; font-weight:bold" \| Default
			\| style="font-weight:bold" \| Meaning
			\|-
			\| 1EE0
			\| 0
			\| 0
	\| Decrementer in event counter mode (0=in timer mode)		\| Decrementer in event counter mode (0=in timer mode)
	\|-		\|-
	\| 1EE2		\| 1EE2
	\| 1		\| 1
			\| 0
	\| Enable decrementer		\| Enable decrementer
	\|-		\|-
	\| 1EE4		\| 1EE4
	\| 2		\| 2
			\| 0
	\| Interrupt level 1 latch		\| Interrupt level 1 latch
	\|-		\|-
	\| 1EE6		\| 1EE6
	\| 3		\| 3
			\| 0
	\| Interrupt level 2 latch		\| Interrupt level 2 latch
	\|-		\|-
	\| 1EE8		\| 1EE8
	\| 4		\| 4
			\| 1
	\| Interrupt level 4 latch		\| Interrupt level 4 latch
	\|-		\|-
	\| 1EEA		\| 1EEA
	\| 5		\| 5
			\| 0
	\| not used		\| not used
	\|-		\|-
	\| 1EEC		\| 1EEC
	\| 6		\| 6
			\| 0
	\| not used		\| not used
	\|-		\|-
	\| 1EEE		\| 1EEE
	\| 7		\| 7
			\| 0
	\| not used		\| not used
	\|-		\|-
	\| 1EF0		\| 1EF0
	\| 8		\| 8
			\| 1
	\| Keyboard clock enable		\| Keyboard clock enable
	\|-		\|-
	\| 1EF2		\| 1EF2
	\| 9		\| 9
			\| 1
	\| Clear keyboard input register		\| Clear keyboard input register
	\|-		\|-
	\| 1EF4		\| 1EF4
	\| 10		\| 10
			\| 1
	\| Geneve mode (/TI mode)		\| Geneve mode (/TI mode)
	\|-		\|-
	\| 1EF6		\| 1EF6
	\| 11		\| 11
			\| 0
	\| Direct mode (/Mapper mode)		\| Direct mode (/Mapper mode)
	\|-		\|-
	\| 1EF8		\| 1EF8
	\| 12		\| 12
			\| 1
	\| Cartridge rom size (1=8 KiB, 0=16 Kib)		\| Cartridge rom size (1=8 KiB, 0=16 Kib)
	\|-		\|-
	\| 1EFA		\| 1EFA
	\| 13		\| 13
			\| 1
	\| /Protect 6xxx		\| /Protect 6xxx
	\|-		\|-
	\| 1EFC		\| 1EFC
	\| 14		\| 14
			\| 1
	\| /Protect 7xxx		\| /Protect 7xxx
	\|-		\|-
	\| 1EFE		\| 1EFE
	\| 15		\| 15
			\| 1
	\| /Add [[Geneve wait state generation\|wait state]] per memory cycle		\| /Add [[Geneve wait state generation\|wait state]] per memory cycle
	\|-		\|-
	\| 1FDA		\| 1FDA
	\| 125		\| 125
			\| 0
	\| Macro Instruction Detect		\| Macro Instruction Detect
	\|}		\|}

← Older revision		Revision as of 13:41, 21 August 2015
Line 359:		Line 359:

	Obviously these flag bits only make sense when used as outputs. Storing bits for later reading can be done better within the CPU RAM.		Obviously these flag bits only make sense when used as outputs. Storing bits for later reading can be done better within the CPU RAM.


	The PFM512 boot device modification replaces the standard 16KiB 28-pin boot EPROM with a 512KiB 32-pin Atmel 29c040 flash chip. The chip is visible in four 128KiB banks residing at memory pages 0xf0 - 0xff. Each page is selected via two re-purposed (normally unused) 9901 outputs:

	~~{\| style="width:70%; margin-top:3ex"~~
	\|-
	~~\| colspan="4" style="background-color:lightgray; text-align:center" \| PFM512 Bank Selection~~
	\|-
	~~\| style="width:15%; font-weight:bold" \| cru 0x28~~
	~~\| style="width:15%; font-weight:bold" \| cru 0x3A~~
	~~\| style="width:15%; font-weight:bold" \| Bank~~
	~~\| style="font-weight:bold" \| Notes~~
	\|-
	~~\| 0~~
	~~\| 0~~
	~~\| Bank 0 Default~~
	~~\| Boot code and Operating System~~
	\|-
	~~\| 0~~
	~~\| 1~~
	~~\| Bank 2~~
	~~\| Flashdisk bank #1~~
	\|-
	~~\| 1~~
	~~\| 0~~
	~~\| Bank 1~~
	~~\| Flashdisk bank #2~~
	\|-
	~~\| 1~~
	~~\| 1~~
	~~\| Bank 3~~
	~~\| Flashdisk bank #3~~
	\|}

	== Usage ==		== Usage ==