User:Trap15/fm7: Difference between revisions

Revision as of 02:06, 5 February 2024

Address

R/W

Detail

$FD00

R

Keyboard data high bit, and clock speed indicator

Bit	7	6	5	4	3	2	1	0
Name	D8							CLK

D8	Keyboard data bit 8
CLK	Clock speed	0: 1.2MHz 1: 2MHz AV always reads '1'

W

Audio cassette and printer

Bit	7	6	5	4	3	2	1	0
Name	SLCTIN	STRB					CASRMT	CASDAT

SLCTIN	Printer select input	0: Select 1: Unselect
STRB	Printer strobe	Strobe for data exchange (edge pulse)
CASRMT	Audio cassette remote	0: ON 1:OFF
CASDAT	Audio cassette data	Write data, MIC

@@ Line 1: / Line 1: @@
+== Main I/O Map ==
 {| class="wikitable"
 |-
 ! Address !! R/W !! Detail
 |-
-! $FD00
+! rowspan=2 | $FD00
-| Keyboard Data<br/>Clock Speed
+| R
-|
+| Keyboard data high bit, and clock speed indicator
-  {| class="wikitable"
+{| class="wikitable"
-   |-
+ |-
-   ! Bit !! 7 !! 6 !! 5 !! 4 !! 3 !! 2 !! 1 !! 0
+ ! Bit !! 7 !! 6 !! 5 !! 4 !! 3 !! 2 !! 1 !! 0
-   |-
+ |-
-   ! Name
+ ! Name
-   | D8 || || || || || || || CLK
+ | D8
-   |}
+ | colspan=6 |
-  {| class="wikitable"
+ | CLK
-   |-
+ |}
-   ! D8
+{| class="wikitable"
-   | Keyboard data bit 8
+ |-
-   |-
+ ! D8
-   ! CLK
+ | Keyboard data bit 8
-   | Clock speed
+ |
-   | 0: 1.2MHz<br>1: 2MHz
+ |-
-   |}
+ ! CLK
+ | Clock speed
+ | 0: 1.2MHz<br>1: 2MHz<br>AV always reads '1'
+ |}
 |-
-| Example || Example || Example
+| W
-|-
+| Audio cassette and printer
-| Example || Example || Example
+{| class="wikitable"
+ |-
+ ! Bit !! 7 !! 6 !! 5 !! 4 !! 3 !! 2 !! 1 !! 0
+ |-
+ ! Name
+ | SLCTIN
+ | STRB
+ | colspan=4 |
+ | CASRMT
+ | CASDAT
+ |}
+{| class="wikitable"
+ |-
+ ! SLCTIN
+ | Printer select input
+ | 0: Select<br>1: Unselect
+ |-
+ ! STRB
+ | Printer strobe
+ | Strobe for data exchange (edge pulse)
+ |-
+ ! CASRMT
+ | Audio cassette remote
+ | 0: ON<br>1:OFF
+ |-
+ ! CASDAT
+ | Audio cassette data
+ | Write data, MIC
+ |}
 |}