UPD78F0078GK-9ET-A Renesas Electronics America, UPD78F0078GK-9ET-A Datasheet - Page 314

• Manufacturer Part Number: UPD78F0078GK-9ET-A
• Manufacturer: Renesas Electronics America

Specifications of UPD78F0078GK-9ET-A

• Lead Free Status / Rohs Status: Supplier Unconfirmed

312
Address: FFB8H After reset: 00H
CSIM3
Notes 1. When CSIE3 = 0 (SIO3 operation stopped status), the SI3, SO3, and SCK3 pins can be used as UART2
Caution
Remark f
Symbol
2. When CSIE3 = 1 (SIO3 operation enabled status), the SI3 pin can be used as a port pin if only the
3. When MODE3 = 1 (receive-only mode), the SO3 pin can be used for port functions.
4. Expanded-specification products of PD780078 Subseries only.
or for port functions.
transmit function is used, and the SO3 pin can be used as a port pin if only the receive-only mode
is used.
X
Do not rewrite the value of CSIM3 during transfer. However, CSIE3 can be rewritten using a
1-bit memory manipulation instruction.
: Main system clock oscillation frequency
MODE3
SCL31
CSIE3
CSIE3
7
0
1
0
1
0
0
1
1
Figure 16-2. Format of Serial Operation Mode Register 3 (CSIM3)
Operation disabled
Operation enabled
Transmit/transmit and receive mode
Receive-only mode
SCL30
Shift register operation
6
0
0
1
0
1
Operation mode
CHAPTER 16 SERIAL INTERFACE SIO3
R/W
External clock input to SCK3
f
f
f
X
X
X
/2
/2
/2
3
4
5
5
0
User’s Manual U14260EJ4V0UD
Enable/disable specification for SIO3
Transfer operation modes and flags
Clear
Count operation enabled
Write to SIO3
Read from SIO3
4
0
Transfer start trigger
Serial counter
Clock selection
3
0
1.04 MHz
523 kHz
261 kHz
MODE3
f
X
= 8.38 MHz
2
Port function
Serial function + port function
SO3
P35
–
SO3/P35/RxD2 pin function
Note 3
SCL31
1
f
1.50 MHz
750 kHz
375 kHz
Port
Note 1
X
= 12 MHz
–
SCL30
0
Note 4
Note 2