參數(shù)資料
型號: M37540E8GP
元件分類: 微控制器/微處理器
英文描述: 8-BIT, OTPROM, 6 MHz, MICROCONTROLLER, PDSO36
封裝: 0.450 INCH, 0.80 MM PITCH, PLASTIC, SSOP-36
文件頁數(shù): 10/88頁
文件大小: 872K
代理商: M37540E8GP
7540 Group
Rev.4.00
Jun 21, 2004
page 18 of 82
REJ03B0011-0400Z
Fig. 17 Block diagram of ports (1)
(6)Port P11
Data bus
Port latch
Serial I/O1 output
P11/TxD1 P-channel output disable bit
(5)Port P10
(4)Ports P04–P07
(1)Port P00
Direction
register
Data bus
Port latch
Pull-up control
To key input interrupt
generating circuit
CNTR1 interrupt input
(2)Ports P01, P02
Programmable waveform generation mode
Timer output
(7)Port P12
Serial I/O1, serial I/O2 clock output
Serial I/O1 mode selection bit
Serial I/O1 enable bit
Serial I/O1 synchronous
clock selection bit
SCLK2 pin
selection bit
(3)Port P03
Direction
register
Data bus
Port latch
Pull-up control
To key input interrupt
generating circuit
Direction
register
Data bus
Port latch
Pull-up control
To key input interrupt
generating circuit
Timer output
P03/TXOUT
output valid
Direction
register
Data bus
Port latch
Pull-up control
To key input interrupt
generating circuit
Direction
register
Data bus
Port latch
Serial I/O1 enable bit
Receive enable bit
Serial I/O1 input
P10, P12, P13
input level
selection bit
Direction
register
Serial I/O1 enable bit
Transmit enable bit
Direction
register
Data bus
Port latch
Serial I/O1, serial I/O2 clock input
P10, P12, P13
input level
selection bit
*
P10, P12, P13, P36, and P37 input level are switched to the CMOS/TTL level by the port P1P3 control register.
P00 key-on wakeup
selection bit
When the TTL level is selected, there is no hysteresis characteristics.
**
P02/TZOUT;
Programmable waveform generation mode
Programmable one-shot generation mode
Programmable wait one-shot generation mode
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