UPD78F0413GA-GAM-AX NEC, UPD78F0413GA-GAM-AX Datasheet - Page 112

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

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

(3) Setting of operation mode for subsystem clock pin
112
Note The main clock mode register (MCM) is used to set the main system clock supplied to CPU clock (high-
Caution
The operation mode for the subsystem clock pin can be set by using bit 4 (OSCSELS) of the clock operation
mode select register (OSCCTL) in combination.
f
f
f
f
f
f
XP
XP
XP
XP
XP
SUB
CPU Clock (f
/2
/2
/2
/2
/2
2
3
4
speed system clock/internal high-speed oscillation clock) (see Figure 5-6).
Table 5-2. Relationship Between CPU Clock and Minimum Instruction Execution Time
Bit 4 of OSCCTL
Confirm that bit 5 (CLS) of the processor clock control register (PCC) is 0 (CPU is operating
with main system clock) when changing the current values of OSCSELS.
OSCSELS
CPU
)
0
1
Table 5-3. Setting of Operation Mode for Subsystem Clock Pin
0.2 s
0.4 s
0.8 s
1.6 s
3.2 s
High-Speed System Clock
At 10 MHz Operation
CHAPTER 5 CLOCK GENERATOR
Input port mode
XT1 oscillation mode
Subsystem Clock Pin
User’s Manual U18698EJ1V0UD
Main System Clock
Operation Mode
Note
Minimum Instruction Execution Time: 2/f
0.25 s (TYP.)
0.5 s (TYP.)
1.0 s (TYP.)
2.0 s (TYP.)
4.0 s (TYP.)
At 8 MHz (TYP.) Operation
Internal High-Speed
Oscillation Clock
Input port
Crystal resonator connection
P123/XT1 Pin
Note
122.1 s
CPU
At 32.768 kHz Operation
Subsystem Clock
P124/XT2 Pin