參數(shù)資料
型號(hào): M38203E4FS
元件分類: 微控制器/微處理器
英文描述: 8-BIT, UVPROM, 4 MHz, MICROCONTROLLER, CQCC80
封裝: 0.80 MM PITCH, CERAMIC, LCC-80
文件頁(yè)數(shù): 17/69頁(yè)
文件大?。?/td> 944K
代理商: M38203E4FS
Rev.4.01
Nov 14, 2003
page 24 of 136
3803/3804 Group
Fig. 19 Port block diagram of 3804 group (1)
(6) Ports P34, P44
Serial I/O input
(1) Ports P0, P6
A-D converter input
Analog input pin
selection bit
Direction
register
Data bus
Port latch
Pull-up control bit
(2) Ports P10, P11, P42, P43, P57
Interrupt input
(3) Ports P12 to P17, P2
(4) Ports P30, P31
DA1 output enable (P30)
DA2 output enable (P31)
(8) Ports P36, P46
(7) Ports P35, P45
(5) Ports P32, P33
Data bus
Direction
register
Port latch
Pull-up control bit
Direction
register
Port latch
Data bus
Direction
register
Port latch
Pull-up control bit
D-A converter output
Data bus
Direction
register
Port latch
Pull-up control bit
Serial I/O enable bit
Receive enable bit
Direction
register
Port latch
Data bus
Direction
register
Port latch
Data bus
Pull-up control bit
Serial I/O enable bit
Transmit enable bit
P-channel output
disable bit
Serial I/O enable bit
Serial I/O mode selection bit
Serial I/O enable bit
Serial I/O synchronous clock
selection bit
Data bus
Direction
register
Port latch
Pull-up control bit
Serial I/O external clock input
Serial I/O clock output
SDA output
SCL output
SDA input
SCL input
I2C-BUS interface enable bit
Serial I/O output
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