参数资料
型号: M37540E8GP
元件分类: 微控制器/微处理器
英文描述: 8-BIT, OTPROM, 6 MHz, MICROCONTROLLER, PDSO36
封装: 0.450 INCH, 0.80 MM PITCH, PLASTIC, SSOP-36
文件页数: 14/90页
文件大小: 830K
代理商: M37540E8GP
7540 Group
Rev.4.00
Jun 21, 2004
page 19 of 82
REJ03B0011-0400Z
Fig. 18 Block diagram of ports (2)
Pull-up control
INT interrupt input
P3 input level
selection bit
(11) Ports P30–P35
Pull-up control
(9) Port P14
Data bus
Serial I/O1 ready output
Serial I/O2 output
Serial I/O2 input
SDATA2 pin selection bit
Port latch
Direction
register
SDATA2 output in operation signal
CNTR0 interrupt input
Pulse output mode
Timer output
P10, P12, P13
input level
selection bit
Serial I/O mode selection bit
Serial I/O1 enable bit
SRDY1 output enable bit
P10, P12, P13, P36, and P37 input level are switched to the CMOS/TTL level by the port P1P3 control register.
Data bus
Port
latch
Direction
register
Data bus
Port
latch
Direction
register
Data bus
Port latch
Direction
register
A/D converter input
Analog input pin
selection bit
(12) Ports P36, P37
Data bus
Port
latch
Direction
register
*
(10) Ports P20–P27
*
(8) Port P13
When the TTL level is selected, there is no hysteresis characteristics.
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