UPD78F0413GA-GAM-AX NEC, UPD78F0413GA-GAM-AX Datasheet - Page 107

8BIT UC, 32K FLASH, 1KB RAM, LCD

UPD78F0413GA-GAM-AX

Manufacturer Part Number
UPD78F0413GA-GAM-AX
Description
8BIT UC, 32K FLASH, 1KB RAM, LCD
Manufacturer
NEC
Datasheet

Specifications of UPD78F0413GA-GAM-AX

Controller Family/series
UPD78F
No. Of I/o's
30
Ram Memory Size
1024Byte
Cpu Speed
10MHz
No. Of Timers
8
No. Of Pwm
RoHS Compliant
Core Size
8bit
Program Memory Size
32KB
Oscillator Type
External, Internal

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5.2 Configuration of Clock Generator
(3) Internal low-speed oscillation clock (clock for watchdog timer)
Remark f
The clock generator includes the following hardware.
Control registers
Oscillators
Internal low-speed oscillator
This circuit oscillates a clock of f
clock always starts operating.
Oscillation can be stopped by using the internal oscillation mode register (RCM) when “internal low-speed
oscillator can be stopped by software” is set by option byte.
The internal low-speed oscillation clock cannot be used as the CPU clock. The following hardware operates
with the internal low-speed oscillation clock.
Watchdog timer
8-bit timer H1 (if f
LCD controller/driver (if f
RL
Item
:
Internal low-speed oscillation clock frequency
RL
, f
Clock operation mode select register (OSCCTL)
Processor clock control register (PCC)
Internal oscillation mode register (RCM)
Main OSC control register (MOC)
Main clock mode register (MCM)
Oscillation stabilization time counter status register (OSTC)
Oscillation stabilization time select register (OSTS)
Internal high-speed oscillation trimming register (HIOTRM)
X1 oscillator
XT1 oscillator
Internal high-speed oscillator
Internal low-speed oscillator
RL
/2
Table 5-1. Configuration of Clock Generator
RL
7
or f
/2
3
RL
is selected as the LCD source clock)
CHAPTER 5 CLOCK GENERATOR
RL
/2
= 240 kHz (TYP.). After a reset release, the internal low-speed oscillation
9
User’s Manual U18698EJ1V0UD
is selected as the count clock)
Configuration
107

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