
MB91340/MB91V340
16
* : Shaded pins are only present on the MB91V340.
(Continued)
Pin no.
Pin name
I/O
circuit
type
Function
MB91340 MB91V340
124
144
SCK1
C
[SCK1] UART1 clock input/output pin. The pin has this function
when UART1 clock output is enabled.
PI5
[PI5] General purpose input/output port. The pin has this function
when UART1 clock output is disabled.
125
145
SI2
C
[SI2] UART2 data input pin. This input is used continuously when
UART2 is performing input. In this case, do not output to this port
unless doing so intentionally.
PH0
[PH0] General purpose input/output port.
126
146
SO2
C
[SO2] UART1 data output pin. The pin has this function when
UART2 data output is enabled.
PH1
[PH1] General purpose input/output port. The pin has this function
when UART2 data output is disabled.
127
147
SCK2
C
[SCK2] UART2 clock input/output pin. The pin has this function
when UART2 clock output is enabled.
PH2
[PH2] General purpose input/output port. The pin has this function
when UART2 clock output is disabled.
128 to
130
272 to 274
MD0 to
MD2
G
[MD0-MD2] Mode pins 0 to 2. The levels applied to these pins set
the basic operating mode. Connect to VCC or VSS.
134
282
X1
A
Clock (oscillation) output
135
280
X0
A
Clock (oscillation) input
137
283
DREQ2
C
[DREQ2] External input for DMA transfer requests. This input is
used continuously when selected as a DMA activation trigger. In
this case, do not output to this port unless doing so intentionally.
PC0
[PC0] General purpose input/output port.
138
285
DACK2
C
[DACK2] External acknowledge output for DMA transfer requests.
The pin has this function when outputting DMA transfer request
acknowledgement is enabled.
PC1
[PC1] General purpose input/output port. The pin has this function
when outputting DMA transfer request acknowledgement is dis-
abled.
139
286
DEOP2
C
[DEOP2] Completion output for DMA external transfer. The pin
has this function when outputting DMA transfer completion is en-
abled.
DSTP2
[DSTP2] Stop input for DMA external transfer. The pin has this
function when the stop input is enabled for DMA transfer.
PC2
[PC2] General purpose input/output port. The pin has this function
when completion output and stop input are disabled for DMA
transfer.