UPD78F0537DGA(T)-9EV-A NEC, UPD78F0537DGA(T)-9EV-A Datasheet - Page 396

• Manufacturer Part Number: UPD78F0537DGA(T)-9EV-A
• Description: 8BIT MCU, 128K FLASH, 7KB RAM, SMD
• Manufacturer: NEC

Specifications of UPD78F0537DGA(T)-9EV-A

• Controller Family/series: UPD78
• No. Of I/o's: 55
• Ram Memory Size: 7KB
• Cpu Speed: 20MHz
• No. Of Timers: 8
• No. Of Pwm: RoHS Compliant
• Core Size: 8bit
• Program Memory Size: 128KB
• Oscillator Type: External, Internal

16.3 Registers Controlling Serial Interfaces CSI10 and CSI11
(1) Serial operation mode register 1n (CSIM1n)
396
Address: FF80H After reset: 00H R/W
CSIM10
Serial interfaces CSI10 and CSI11 are controlled by the following four registers.
• Serial operation mode register 1n (CSIM1n)
• Serial clock selection register 1n (CSIC1n)
• Port mode register 0 (PM0) or port mode register 1 (PM1)
• Port register 0 (P0) or port register 1 (P1)
Notes 1.
Caution Be sure to clear bit 5 to 0.
Symbol
Remark n = 0:
CSIM1n is used to select the operation mode and enable or disable operation.
CSIM1n can be set by a 1-bit or 8-bit memory manipulation instruction.
Reset signal generation sets this register to 00H.
2.
3.
4.
5.
6.
TRMD10
n = 0, 1:
DIR10
Bit 0 is a read-only bit.
To use P10/SCK10/T
(00H).
Bit 0 (CSOT10) of CSIM10 and serial I/O shift register 10 (SIO10) are reset.
Do not rewrite TRMD10 when CSOT10 = 1 (during serial communication).
The SO10 output (see Figure 16-1) is fixed to the low level when TRMD10 is 0. Reception is started
when data is read from SIO10.
Do not rewrite DIR10 when CSOT10 = 1 (during serial communication).
CSOT10
CSIE10
CSIE10
0
<7>
Note 5
0
1
1
0
1
0
1
Note 6
Note 4
Figure 16-3. Format of Serial Operation Mode Register 10 (CSIM10)
µ
µ
PD78F0531, 78F0532, 78F0533
PD78F0534, 78F0535, 78F0536, 78F0537, 78F0537D
Disables operation
Enables operation
Receive mode (transmission disabled).
Transmit/receive mode
MSB
LSB
Communication is stopped.
Communication is in progress.
TRMD10
CHAPTER 16 SERIAL INTERFACES CSI10 AND CSI11
6
Note 1
X
D0 and P12/SO10 as general-purpose ports, set CSIM10 in the default status
Note 2
5
0
User’s Manual U17260EJ6V0UD
and asynchronously resets the internal circuit
Operation control in 3-wire serial I/O mode
DIR10
4
Transmit/receive mode control
Communication status flag
First bit specification
3
0
2
0
Note 3
.
1
0
CSOT10
0