UPD78F0890GK(A)-GAJ-AX NEC, UPD78F0890GK(A)-GAJ-AX Datasheet - Page 365

• Manufacturer Part Number: UPD78F0890GK(A)-GAJ-AX
• Description: 8BIT MCU, 128K FLASH, 7K RAM, LQFP
• Manufacturer: NEC

Specifications of UPD78F0890GK(A)-GAJ-AX

• Controller Family/series: UPD78F
• No. Of I/o's: 55
• Ram Memory Size: 7KB
• Cpu Speed: 20MHz
• No. Of Timers: 10
• No. Of Pwm: RoHS Compliant
• Core Size: 8bit
• Program Memory Size: 128KB
• Oscillator Type: External, Internal

15.4 Operation of Serial Interfaces CSI10 and CSI11
15.4.1 Operation stop mode
addition, the P10/SCK10/T
used as ordinary I/O port pins in this mode.
(1) Register used
Address: FF80H After reset: 00H R/W
Address: FF88H After reset: 00H R/W
CSIM10
CSIM11
Serial interfaces CSI10 and CSI11 can be used in the following two modes.
• Operation stop mode
• 3-wire serial I/O mode
Serial communication is not executed in this mode. Therefore, the power consumption can be reduced. In
Symbol
Symbol
The operation stop mode is set by serial operation mode register 1n (CSIM1n).
To set the operation stop mode, clear bit 7 (CSIE1n) of CSIM1n to 0.
(a) Serial operation mode register 1n (CSIM1n)
CSIM1n can be set by a 1-bit or 8-bit memory manipulation instruction.
Reset signal generation clears CSIM1n to 00H.
Remark n = 0, 1
• Serial operation mode register 10 (CSIM10)
Notes 1.
• Serial operation mode register 11 (CSIM11)
Notes 1.
CSIE10
CSIE11
CSIE10
2.
CSIE11
2.
<7>
<7>
0
0
To use P10/SCK10/T
status (00H).
Bit 0 (CSOT10) of CSIM10 and serial I/O shift register 10 (SIO10) are reset.
To use P74/SO11, P76/SCK11, and P05/SSI11/TI001 as general-purpose ports, set CSIM11 in
the default status (00H).
Bit 0 (CSOT11) of CSIM11 and serial I/O shift register 11 (SIO11) are reset.
Disables operation
Disables operation
X
TRMD10
TRMD11
D61, P11/SI10/R
CHAPTER 15 SERIAL INTERFACES CSI10 AND CSI11
6
6
SSE11
X
Note 1
Note 1
D61 and P12/SO10 as general-purpose ports, set CSIM10 in the default
5
0
5
X
User’s Manual U17554EJ4V0UD
D61, P12/SO10, P74/SO11, P75/SI11, and P76/SCK11 pins can be
and asynchronously resets the internal circuit
and asynchronously resets the internal circuit
Operation control in 3-wire serial I/O mode
Operation control in 3-wire serial I/O mode
DIR11
DIR10
4
4
3
0
3
0
2
0
2
0
Note 2
Note 2
.
.
1
0
1
0
CSOT10
CSOT11
0
0
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