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參數(shù)資料
| 型號： | S1C62920D |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 4-BIT, MROM, 1.3 MHz, MICROCONTROLLER, UUC63 |
| 封裝： | DIE-63 |
| 文件頁數(shù)： | 42/78頁 |
| 文件大?。?/td> | 874K |
| 代理商： | S1C62920D |
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S1C62920 TECHNICAL MANUAL
EPSON
39
CHAPTER 4: PERIPHERAL CIRCUITS AND OPERATION (Serial Interface)
4.9.4 Mask option
Since the input/output terminal of the serial interface is dual used with the I/O ports (P10–P13), the mask
option that selects the specification for the I/O port is also applied to the serial interface.
(1) Output specification
The output specification of the terminals SOUT, SCLK (during the master mode) and SRDY (during the
slave mode) that is used as output in the input/output port of the serial interface is respectively
selected by the mask options of P11, P12 and P13.
Either complementary output or N channel (Nch) open drain as output specification may be selected.
However, even if Nch open drain has been selected, application on the terminal of voltage exceeding
power source voltage is not permitted.
(2) Pull up resistor
Whether or not the SIN (P10) terminal and SCLK (P02) terminal (during slave mode) will use built-in
pull up resistor can be selected.
Normally, the use of pull up resistor should be selected.
(3) FOUT frequency
The FOUT frequency, which is selected by the mask option to select the output port R02 special output
specification, is used for the synchronous clock. When the serial interface is used, the FOUT frequency
must be selected even if the R02 port is not used as the FOUT output.
It can be selected from the four types listed below.
1. OSC1
2. OSC1 /8
3. OSC1 /64
4. OSC3
4.9.5 Control of serial interface
Table 4.9.5.1 list the serial interface control bits and their addresses.
Table 4.9.5.1 Control bits of serial interface
address
Comment
Register
D3
D2
D1
D0
Name
Init
1
0
*1
ESIF
SD0
SD4
EISIF
R/W
ISIF
SCS0
0
SCTRG(W)
SCTRG(R)
ESIF
SD3
SD2
SD1
SD0
SD7
SD6
SD5
SD4
0
EISIF
0
ISIF
0
–
0
–
0
–
0
FOUT
Trigger
Run
SIF port
Enable
Yes
Slave
–
Stop
I/O port
Mask
No
SCTRG
SD1
SD5
0
R
SD2
SD6
0
R
0
SCS0
R/W
SD3
SD7
0
E8H
E9H
EAH
F0H
F8H
*2
*5
*4
*7
Serial I/F clock mode selection
Unused
Serial I/F clock trigger (writing)
Serial I/F clock status (reading)
P1 port function selection
MSB
Serial I/F data (low-order 4 bits)
LSB
MSB
Serial I/F data (high-order 4 bits)
LSB
Unused
Interrupt mask register (Serial I/F)
Unused
Interrupt factor flag (Serial I/F)
R/W
R
*1 Initial value at the time of initial reset
*5 Constantly "0" when being read
*2 Not set in the circuit
*6 Refer to main manual
*3 Undefined
*7 Page switching in I/O memory is not necessary
*4 Reset (0) immediately after being read
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