
MB91340/MB91V340
18
* : Shaded pins are only present on the MB91V340.
(Continued)
Pin no.
Pin name
I/O
circuit
type
Function
MB91340 MB91V340
147
296
IORD
C
[IORD] Read strobe output for DMA fly-by transfer. The pin has
this function when outputting a read strobe for DMA fly-by transfer
is enabled.
PB7
[PB7] General purpose input/output port. The pin has this function
when outputting a read strobe for DMA fly-by transfer is disabled.
149
297
CS0
C
[CS0] Chip select 0 output. The pin has this function when chip se-
lect 0 output is enabled.
PA0
[PA0] General purpose input/output port. The pin has this function
when chip select 0 output is disabled.
150
298
CS1
C
[CS1] Chip select 1 output. The pin has this function when chip se-
lect 1 output is enabled.
PA1
[PA1] General purpose input/output port. The pin has this function
when chip select 1 output is disabled.
151
299
CS2
C
[CS2] Chip select 2 output. The pin has this function when chip se-
lect 2 output is enabled.
PA2
[PA2] General purpose input/output port. The pin has this function
when chip select 2 output is disabled.
152
300
CS3
C
[CS3] Chip select 3 output. The pin has this function when chip se-
lect 3 output is enabled.
PA3
[PA3] General purpose input/output port. The pin has this function
when chip select 3 output is disabled.
153
301
CS4
C
[CS4] Chip select 4 output. The pin has this function when chip se-
lect 4 output is enabled.
PA4
[PA4] General purpose input/output port. The pin has this function
when chip select 4 output is disabled.
154
303
CS5
C
[CS5] Chip select 5 output. The pin has this function when chip se-
lect 5 output is enabled.
PA5
[PA5] General purpose input/output port. The pin has this function
when chip select 5 output is disabled.
155
304
CS6
C
[CS6] Chip select 6 output. The pin has this function when chip se-
lect 6 output is enabled.
PA6
[PA6] General purpose input/output port. The pin has this function
when chip select 6 output is disabled.
156
305
CS7
C
[CS7] Chip select 7 output. The pin has this function when chip se-
lect 7 output is enabled.
PA7
[PA7] General purpose input/output port. The pin has this function
when chip select 7 output is disabled.
159
306
NMI
G
NMI (Non Maskable Interrupt) input
160
307
HST
G
Hardware standby input