UPD78F0034BGC-8BS-A Renesas Electronics America, UPD78F0034BGC-8BS-A Datasheet - Page 232

• 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

9.4.3 Square-wave output (8-bit resolution) operation
compare register 5n (CR5n).
0 (TOE5n) of 8-bit timer mode control register 5n (TMC5n) to 1. This enables a square wave with any selected
frequency to be output (duty = 50%).
230
A square wave with any selected frequency is output at intervals determined by the value preset to 8-bit timer
The TO5n pin output status is reversed at intervals determined by the count value preset to CR5n by setting bit
[Setting]
<1> Set each register
<2> After TCE5n = 1 is set, the count operation starts.
<3> Timer output F/F is reversed by match between TM5n and CR5n. After INTTM5n is generated, TM5n is
<4> Timer output F/F is reversed at the same interval and a square wave is output from TO5n.
Note 8-bit timer/event counter 50: P72, PM72
• Clear port latches (P72, P73)
• TCL5n: Select count clock
• CR5n: Compare value
• TMC5n: Count operation stop, clear & start mode on match between TM5n and CR5n
cleared to 00H.
The frequency is as follows.
8-bit timer/event counter 51: P73, PM73
• Frequency = f
(N = 00H to FFH, f
Timer output F/F reverse enable
Timer output enable
(TMC5n = 00001011B or 00000111B)
LVS5n
1
0
CNT
CHAPTER 9 8-BIT TIMER/EVENT COUNTERS 50, 51
LVR5n
/2 (N + 1)
0
1
CNT
: Count clock)
High-level output
Low-level output
Note
TOE5n = 1
User’s Manual U14046EJ5V0UD
and port mode registers (PM72, PM73)
Timer Output F/F Status Setting
Note
to 0.