UPD78F0386GK-8EU-A Renesas Electronics America, UPD78F0386GK-8EU-A Datasheet - Page 253

• Manufacturer Part Number: UPD78F0386GK-8EU-A
• Description: MCU 96KB FLASH 5KB RAM
• Manufacturer: Renesas Electronics America
• Series: 78K0/Lx2r

Specifications of UPD78F0386GK-8EU-A

• Core Processor: 78K/0
• Core Size: 8-Bit
• Speed: 20MHz
• Connectivity: 3-Wire SIO, I²C, LIN, UART/USART
• Peripherals: LCD, LVD, POR, PWM, WDT
• Number Of I /o: 26
• Program Memory Size: 96KB (96K x 8)
• Program Memory Type: FLASH
• Ram Size: 5K x 8
• Voltage - Supply (vcc/vdd): 1.8 V ~ 5.5 V
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: *
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Data Converters: -

11.4 Operations of Clock Output Controller
(2) Port mode register 14 (PM14)
The clock pulse is output as the following procedure.
<1> Select the clock pulse output frequency with bits 0 to 3 (CCS0 to CCS3) of the clock output selection register
<2> Set bit 4 (CLOE) of CKS to 1 to enable clock output.
Remark
PM14 controls the clock output to the LCD controller/driver.
Set the PM140 bit to 0 to use this register as the clock output function.
PM14 is set with a 1-bit or 8-bit memory manipulation instruction.
Reset signal generation sets PM14 to FFH.
(CKS) (clock pulse output in disabled status).
Clock output
The clock output controller is designed not to output pulses with a small width during output
enable/disable switching of the clock output. As shown in Figure 11-4, be sure to start output from the
low period of the clock (marked with * in the figure). When stopping output, do so after securing a high
level of the clock.
CLOE
Address: FF2EH
Symbol
PM14
PM140
7
0
1
*
1
Figure 11-3. Format of Port Mode Register 14 (PM14)
Figure 11-4. Clock Output Application Example
After reset: FFH
CHAPTER 11 CLOCK OUTPUT CONTROLLER
Clock output to LCD controller/driver enabled
Clock output to LCD controller/driver disabled
6
1
User’s Manual U17504EJ2V0UD
5
1
Clock output control to LCD controller/driver
R/W
4
1
3
1
*
2
1
1
1
PM140
0
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