UPD78F0034BGC-8BS-A Renesas Electronics America, UPD78F0034BGC-8BS-A Datasheet - Page 333

• Manufacturer Part Number: UPD78F0034BGC-8BS-A
• Description: MCU 8-Bit 78K0 CISC 32KB Flash 2.5V/3.3V/5V 64-Pin LQFP
• Manufacturer: Renesas Electronics America

Specifications of UPD78F0034BGC-8BS-A

• Package: 64LQFP
• Family Name: 78K0
• Maximum Speed: 12 MHz
• Ram Size: 1 KB
• Program Memory Size: 32 KB
• Operating Supply Voltage: 2.5|3.3|5 V
• Data Bus Width: 8 Bit
• Program Memory Type: Flash
• Number Of Programmable I/os: 51
• Interface Type: 3-Wire/UART
• On-chip Adc: 8-chx10-bit
• Operating Temperature: -40 to 85 °C
• Number Of Timers: 3

Address: FFB8H After reset: 00H
CSIM31
Caution
Remark f
Notes 1. When CSIE31 = 0 (SIO31 operation stopped status), the SI31, SO31, and SCK31 pins can be used
Symbol
2. When CSIE31 = 1 (SIO31 operation enabled status), the SI31 pin can be used as a port pin if only
3. When MODE1 = 1 (receive-only mode), the SO31 pin can be used for port functions.
4. Expanded-specification products of PD780024A, 780034A Subseries only.
X
as port functions.
the transmit function is used, and the SO31 pin can be used as a port pin if only the receive-only mode
is used.
Do not rewrite the value of CSIM31 during transfer. However, CSIE31 can be rewritten using
a 1-bit memory manipulation instruction.
: Main system clock oscillation frequency
MODE1
SCL311
CSIE31
CSIE31
<7>
0
1
0
1
0
0
1
1
Figure 17-3. Format of Serial Operation Mode Register 31 (CSIM31)
Operation stopped
Operation enabled
Transmit/transmit and receive mode
Receive-only mode
SCL310
CHAPTER 17 SERIAL INTERFACES SIO30 AND SIO31
Shift register operation
6
0
0
1
0
1
Operation mode
R/W
External clock input to SCK31
f
f
f
X
X
X
/2
/2
/2
3
4
5
5
0
User’s Manual U14046EJ5V0UD
Enable/disable specification for SIO31
Transfer operation modes and flags
Clear
Count operation enable
Write to SIO31
Read from SIO31
4
0
Transfer start trigger
Serial counter
Clock selection
3
0
1.04 MHz
523 kHz
261 kHz
MODE1
f
X
= 8.38 MHz
2
Port function
Serial function + port function
SO31
P35
–
SO31/P35 pin function
Note 3
SCL311
1
1.50 MHz
750 kHz
375 kHz
f
Port
Note 1
X
= 12 MHz
SCL310
–
0
Note 4
Note 2
331