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New blink registers are in bold.
Port | Read | Width | Write | Width | Softcopy |
|---|---|---|---|---|---|
$70 |
PB0 | 13 | $0460, $0470 | ||
$71 |
PB1 | 10 | $0461, $0471 | |||
$72 | PB2 | 9 | $0462, $0472 | ||
$73 | PB3 | 11 | $0463, $0473 | ||
$74 | SBR | 11 | $0464, $0474 | ||
$75 | SB1 | 8 | $0475 | ||
$76 | SB2 | 8 | $0476 | ||
$77 | SCI | 16 | SCM | 8 |
$0477 | |||||
$B0 |
MID |
16 | COM | 8 | $04B0 | ||
$B1 | STA | 8 | INT | 8 | $04B1 |
$B2 | KBD | 8 | MVP | 16 | $04B2 |
$B3 | EPR | 8 | $04B3 | ||
$B4 | TACK | 3 | $04B4 | ||
$B5 | TSTA | 3 | TMK | 3 | $04B5 |
$B6 | ACK | 8 | $04B6 | ||
$B7 | ROM | 8 | $04B7 | ||
$C0 | ES0 | 16 | $04C0, $04D0 | ||
$C1 | ES1 | 16 | $04C1, $04D1 | ||
$C2 | ES2 | 16 | $04C2, $04D2 | ||
$C3 | ES3 | 16 | $04C3, $04D3 | ||
$D0 | TIM0 | 8 | SR0 | 8 | $04D0 |
$D1 | TIM1 | 6 | SR1 | 8 | $04D1 |
$D2 | TIM2 | 8 | SR2 | 8 | $04D2 |
$D3 | TIM3 | 8 | SR3 | 8 | $04D3 |
$D4 | TIM4 | 5 | |||
$E0 | RXD | ||||
$E1 | RXE | 6 | |||
$E2 | RXC | 8 | $04E2 | ||
$E3 | TXD | 11 | $04E3 | ||
$E4 | TXC | 8 | $04E4 | ||
$E5 | UIT | 8 | UMK | 7 | $04E5 |
$E6 | UAK | 7 | $04E6 | ||
$F0 | SPS0 | 8 | SPS0 | 16 | $04F0 (LSB), $04F1 (MSB) |
$F1 | SPD0 | 8 | SPD0 | 8 | |
$F2 | SPS1 | 8 | SPS1 | 16 | $04F2 (LSB), $04F3 (MSB) |
$F3 | SPD1 | 8 | SPD1 | 8 |
Read
$70 SCW 8bits Screen width in 8 bits multiple
$71 SCH 8bits Screen height in 8 bits multiple
$B0 TYP 8bits Machine type : bits 7-4 hold blink revision, bits 3-0 hold CPU revision
Write
$75 $77 SCI 16bits Screen Informations
$B0 MID 16bit Machine Identification
Write
$77 SCM 8bits Screen Mode ($00: 640x64 pixels, $01: 640x480 pixels)
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