![](http://datasheet.mmic.net.cn/30000/MB91264BPFV-G-XXX_datasheet_2367798/MB91264BPFV-G-XXX_5.png)
MB91260B Series
5
■ PIN DESCRIPTION
(Continued)
Pin no.
Pin name
Circuit
type
Description
QFP
LQFP
199
SIN1
D
UART1 data input pin. Since this input is used as required when UART1 is
performing input operation, the port output must remain off unless used in-
tentionally.
P23
General-purpose I/O port. This port is enabled when UART1 data input is
disabled.
2100
SOT1
D
UART1 data output pin. This function is enabled when UART1 data output
is enabled.
P24
General-purpose I/O port. This function is enabled when UART1 data out-
put is disabled.
31
SCK1
D
UART1 clock input/output pin. This function is enabled when UART1 clock
output is enabled.
P25
General-purpose I/O port. This function is enabled when UART1 clock out-
put is disabled.
42
INT6
E
External interrupt input pin. Since this input is used as required when the
corresponding external interrupt is enabled, the port output must remain off
unless used intentionally.
P26
General-purpose I/O port. This function is enabled when external interrupt
input is disabled.
53
INT7
E
External interrupt input pin. Since this input is used as required when the
corresponding external interrupt is enabled, the port output must remain off
unless used intentionally.
P27
General-purpose I/O port. This function is enabled when external interrupt
input is disabled.
6
4
P50
C
General-purpose I/O port. This port is enabled in single-chip mode.
75
TIN0
C
Reload timer 0 external trigger input pin. Since this input is used as re-
quired when trigger input is enabled, the port output must remain off unless
used intentionally.
P51
General-purpose I/O port. This function is enabled when reload timer 0 ex-
ternal clock input is disabled.
86
TIN1
C
Reload timer 1 external trigger input pin. Since this input is used as re-
quired when trigger input is enabled, the port output must remain off unless
used intentionally.
P52
General-purpose I/O port. This function is enabled when reload timer 1 ex-
ternal clock input is disabled.
97
TIN2
C
Reload timer 2 external trigger input pin. Since this input is used as re-
quired when trigger input is enabled, the port output must remain off unless
used intentionally.
P53
General-purpose I/O port. This function is enabled when reload timer 2 ex-
ternal clock input is disabled.