參數(shù)資料
型號(hào): M38C24M4A-XXXFP
元件分類(lèi): 微控制器/微處理器
英文描述: 8-BIT, MROM, 5 MHz, MICROCONTROLLER, PQFP64
封裝: 14 X 14 MM, 0.80 MM PITCH, PLASTIC, LQFP-64
文件頁(yè)數(shù): 11/102頁(yè)
文件大?。?/td> 1369K
代理商: M38C24M4A-XXXFP
Rev.2.00
May 28, 2004
page 16 of 100
38C2 Group (A Version)
Fig. 12 Port block diagram (1)
(1) Ports P00–P03
(3) Port P30
Data bus
Serial I/O output
Port latch
Pull-up control
Serial I/O ready output
Data bus
Port latch
Direction register
Pull-up control
Direction register
Data bus
Serial I/O input
Port latch
Data bus
Serial I/O clock output
Serial I/O clock input
Serial I/O mode selection bit
Serial I/O enable bit
Port latch
Direction register
Pull-up control
Segment output disable bit
Data bus
Port latch
VL2/VL3
VL1/VSS
Key input control
Key-on wakeup
interrupt input
Segment data
Segment output disable bit
Direction register
Data bus
Port latch
LCD power input (VL1,VL2)
only for P26,P27
VL2/VL3
VL1/VSS
Segment data
Segment output disable bit
(2) Ports P04–P07, P1, P2
Direction register
Serial I/O mode selection bit
Serial I/O enable bit
SRDY output enable bit
(5) Port P32
P32/TxD2 P-channel
output disable bit
Serial I/O enable bit
Transmit enable bit
(6) Port P33
Serial I/O enable bit
Receive enable bit
(4) Port P31
Serial I/O synchronous
clock selection bit
Serial I/O enable bit
Direction register
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