参数资料
型号: M38K09F8LHP
元件分类: 微控制器/微处理器
英文描述: 8-BIT, FLASH, 12 MHz, MICROCONTROLLER, PQFP64
封装: 10 X 10 MM, 0.50 MM PITCH, PLASTIC, LQFP-64
文件页数: 91/133页
文件大小: 1359K
代理商: M38K09F8LHP
38K0 Group
Rev.3.00
Oct 05, 2006
page 60 of 129
REJ03B0192-0300
b7
b0
EXB_CTR
INT_CTR
[2:0]
A1_CTR
b7:b5
Index = 0016 : External I/O configuration register (EXBCFGL) [address 003416]
0
000
Bit name
Bit symbol
At reset
Function
H/W
S/W
0 : Port
1 : EXB function pin
Selects a signal of P33/ExINT pin.
ON/OFF is programmed by each bit. An output logical
sum of P33/ExINT pins set for ON are performed and it
is output as an “L” active signal.
b3b2b1
0 0 1 : RxB_RDY (RxBuf ready) output
0 1 0 : TxB_RDY (TxBuf ready) output
1 0 0 : Mch_req (Memory channel request) output
Others : Do not set.
0 : Port
1 : A1 input (used to read status)
Write “0” when writing.
“0” is read when reading.
EXB pin control bit
(Pins P10 to P17, P30 to P34)
P33/ExINT pin control bit
P43/ExA1 pin control bit
Not used
O
–: State remaining
W
R
Fig. 84 Index00[low]; Structure of External I/O configuration register
Fig. 85 Index00[high]; Structure of External I/O configuration register
b7
b0
DRQ_CTR
[1:0]
DAK_CTR
[1:0]
TC_CTR
b7:b5
Index = 0016 : External I/O configuration register (EXBCFGH) [address 003516]
0
000
Bit name
Bit symbol
At reset
Function
H/W
S/W
b1b0
0 0 : Port
0 1 : Do not set.
1 0 : ExDREQ function; RxB_RDY (RxBuf ready) output
1 1 : ExDREQ function; Mch_req (Memory channel
request) output
Specifies P41/ExDACK/TxD pin function.
Selects which mode; requiring read or write signal, or
not requiring it for use of DMA acknowledge function.
b3b2
0 0 : Port
0 1 : Do not set.
1 0 : ExDACK function; DMA acknowledge input
(Mode for read and write signals used together)
1 1 :ExDACK function; DMA acknowledge input
(Mode for read and write signals not required)
0 : Port
1 : ExTC (terminal count) input
Write “0” when writing.
“0” is read when reading.
P40/ExDREQ/RxD pin control
bit
P41/ExDACK/TxD pin control
bit
P42/ExTC/SCLK pin control bit
Not used
O
–: State remaining
W
R
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