参数资料
型号: M38503M2H-XXXFP
元件分类: 微控制器/微处理器
英文描述: 8-BIT, MROM, 8 MHz, MICROCONTROLLER, PDSO42
封装: 0.450 INCH, 0.80 MM PITCH, PLASTIC, SSOP-42
文件页数: 21/103页
文件大小: 1275K
代理商: M38503M2H-XXXFP
Rev.3.01
2003.06.20
page 22 of 98
3850 Group (Spec.A)
Fig. 16 Port block diagram (1) (spec. A)
(1) Port P00
Port latch
Direction
register
Data bus
Serial I/O2 input
Pull-up control bit
(3) Port P02
Pull-up control bit
P02/SCLK2 P-channel output disable bit
Serial I/O2 synchronous
clock selection bit
Serial I/O2 port selection bit
Port latch
Direction
register
Data bus
Serial I/O2 clock output
Serial I/O2 external clock input
(5) Port P1
Pull-up control bit
Direction
register
Port latch
Data bus
(7) Port P21
Pull-up control bit
Port XC switch bit
Data bus
Direction
register
Port latch
Sub-clock generating circuit input
(2) Port P01
P01/SOUT2 P-channel output disable bit
Serial I/O2 Transmit completion signal
Serial I/O2 port selection bit
Direction
register
Data bus
Port latch
Serial I/O2 output
Pull-up control bit
(4) Port P03
Pull-up control bit
SRDY2 output enable bit
Direction
register
Port latch
Data bus
Serial I/O2 ready output
(6) Port P20
Port XC switch bit
Pull-up control bit
Oscillator
Port XC switch bit
Port P21
Direction
register
Data bus
Port latch
(8) Ports P22,P23
Data bus
Direction
register
Port latch
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