参数资料
型号: M37546G2SP
元件分类: 微控制器/微处理器
英文描述: 8-BIT, MROM, 8 MHz, MICROCONTROLLER, PDIP32
封装: 8.90 X 28 MM, 1.78 MM PITCH, PLASTIC, SDIP-32
文件页数: 19/105页
文件大小: 1105K
代理商: M37546G2SP
REJ03B0160-0122 Rev.1.22 Mar 13, 2009
page 18 of 100
7546 Group
Fig. 17 Block diagram of ports (1)
(1) Port P00
Direction
register
Data bus
Port latch
Pull-up control
To key input interrupt
generating circuit
Capture 0 input
P00 key-on wakeup
selection bit
Drive capacity
control
Capture 0 input control
(2) Ports P01, P02
Compare output
Direction
register
Data bus
Port latch
Pull-up control
To key input interrupt
generating circuit
Compare output control
Drive capacity
control
(3) Port P03
Timer output
Direction
register
Data bus
Port latch
Pull-up control
To key input interrupt
generating circuit
P03/TXOUT output valid
Drive capacity
control
(4) Port P04
Serial I/O2 input
Direction
register
Data bus
Port latch
Pull-up control
To key input interrupt
generating circuit
Serial I/O2 enable bit
Drive capacity
control
P04 key-on wakeup
selection bit
Receive enable bit
(5) Port P05
Serial I/O2 output
Direction
register
Data bus
Port latch
Pull-up control
To key input interrupt
generating circuit
Serial I/O2 enable bit
Drive capacity
control
Transmit enable bit
(6) Port P06
Serial I/O2 clock output
Direction
register
Data bus
Port latch
Pull-up control
To key input interrupt
generating circuit
Serial I/O2 mode selection bit
Drive capacity
control
Serial I/O2 enable bit
Serial I/O2 synchronous
clock selection bit
Serial I/O2 clock input
P06 key-on wakeup
selection bit
Serial I/O2 enable bit
(7) Port P07
Serial I/O2 ready output
Direction
register
Data bus
Port latch
Pull-up control
To key input interrupt
generating circuit
Serial I/O2 mode selection bit
Serial I/O2 enable bit
SRDY2 output enable bit
Drive capacity
control
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