Pin No.
Pin Name
I/O
Description
-70-
IC DESCRIPTION - 7/9 (HD6417034AF112) - 1/4
1
2
3
4 ~ 11
12
13, 14
15
16 ~ 21
22
23
24 ~ 30
31
32 ~ 39
40
41, 42
43
44 ~ 47
48
49
50
51
52
53
54
55
_____
IRQ6
TP14
PB14
_____
IRQ7
TP15
PB15
VSS
AD0 ~ AD7
VSS
AD8, AD9
VCC
AD10 ~ AD15
VSS
A0
____
HBS
A1 ~ A7
VSS
A8 ~ A15
VSS
A16, A17
VCC
A18 ~ A21
___
CS0
_____
CASH
___
CS1
___
CS2
_____
CASL
___
CS3
VSS
TIOCA0
PA0
___
CS4
____
RAS
PA1
____
CS5
TIOCB0
PA2
____
CS6
I
O
I/O
I
O
I/O
–
I/O
–
I/O
–
I/O
–
O
O
–
O
–
O
–
O
O
O
O
O
–
I/O
O
I/O
O
I/O
O
Interrupt request 6.
Timing pattern output 14. Timing pattern output pins.
Port B: 16-bit input/output pins. Input or output can be selected individually for each bit.
Interrupt request 7.
Timing pattern output 15. Timing pattern output pins.
Port B: 16-bit input/output pins. Input or output can be selected individually for each bit.
Ground
Data bus
Ground
Data bus
Power.
Data bus
Ground
Address bus
Upper/lower byte strobe: Upper and lower byte strobe signals. (Also used as WRH and A0.)
Address bus
Ground
Address bus
Ground
Address bus
Power.
Address bus
Chip select 0. Chip select signals for accessing external memory and devices.
Column address strobe high. DRAM column address strobe timing signal. Output to access the
upper eight data bits.
Chip select 1. Chip select signals for accessing external memory and devices.
Chip select 2. Chip select signals for accessing external memory and devices.
Column address strobe low. DRAM column address strobe timing. Output to access the lower
eight data bits.
Chip select 3. Chip select signals for accessing external memory and devices.
Ground
ITU input capture/output compare (channel 0). Input capture or output compare pins.
Port A. 16-bit input/output pins. Input or output can be selected individually for each bit.
Chip select 4. Chip select signals for accessing external memory and devices.
Row address strobe. DRAM row-address strobe timing signal.
Port A. 16-bit input/output pins. Input or output can be selected individually for each bit.
Chip select 5. Chip select signals for accessing external memory and devices.
ITU input capture/output compare (channel 0). Input capture or output compare pins.
Port A. 16-bit input/output pins. Input or output can be selected individually for each bit.
Chip select 6. Chip select signals for accessing external memory and devices.
