参数资料
型号: M38044M4-XXXFP
元件分类: 微控制器/微处理器
英文描述: 8-BIT, MROM, 8.4 MHz, MICROCONTROLLER, PQFP64
封装: 14 X 14 MM, 0.80 MM PITCH, PLASTIC, QFP-64
文件页数: 15/73页
文件大小: 1882K
代理商: M38044M4-XXXFP
Rev.4.01
Nov 14, 2003
page 22 of 136
3803/3804 Group
Fig. 17 Port block diagram of 3803 group (2)
(10) Port P40
(11) Port P41
(13) Port P50
Port XC switch bit
INT40 interrupt input
Port P41
Serial I/O2 input
(12) Port P47
(9) Port P37
SRDY3 output enable bit
(14) Port P51
INT00 interrupt input
Serial I/O3 enable bit
Serial I/O3 mode
selection bit
Data bus
Direction
register
Port latch
Pull-up control bit
Serial I/O3 ready output
Pull-up control bit
Data bus
Direction
register
Port latch
Port XC switch bit
Oscillator
CNTR2 interrupt input
SRDY1 output enable bit
Serial I/O1 enable bit
Serial I/O1 mode selection bit
Data bus
Serial I/O1 ready output
Timer output
Data bus
Direction
register
Port latch
Pull-up control bit
Sub-clock generating circuit input
Port XC switch bit
Pull-up control bit
Data bus
Direction
register
Port latch
Pull-up control bit
Data bus
Direction
register
Port latch
Serial I/O2 output
Serial I/O2 transmit completion signal
Serial I/O2 port selection bit
P-channel output
disable bit
Bit 2
Timer Z operating
mode bits
Bit 1
Bit 0
Port latch
Direction
register
Pull-up control bit
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