UPD78F0078GK-9ET-A Renesas Electronics America, UPD78F0078GK-9ET-A Datasheet - Page 280

• Manufacturer Part Number: UPD78F0078GK-9ET-A
• Manufacturer: Renesas Electronics America

Specifications of UPD78F0078GK-9ET-A

• Lead Free Status / Rohs Status: Supplier Unconfirmed

278
Cautions 1. If data is written to CKSEL2 during a communication operation, the output of the baud rate
Remark f
f
2. To transfer data in the infrared data transfer (IrDA) mode, the following conditions must be
X
SCK2
:
generator is disturbed and the communication cannot be performed correctly. Therefore,
do not rewrite CKSEL2 during communication.
satisfied when the transmit pulse width is specified.
(Condition)
1.41 s
Example If the transmit pulse width is set to the width of three f
: Source clock of 8-bit counter
Main system clock oscillation frequency
= 0, 0, 1, 1)
T
Input clock
X
D2 pin
Set values of bits 0 to 3
(TPW20 to TPW23) of CKSEL2
CHAPTER 15 SERIAL INTERFACE UART2
Transmit pulse width
User’s Manual U14260EJ4V0UD
1-bit cycle
3-clock width
Pulse output starts from
the center of the 1-bit cycle.
<
Set values of bits 0 to 7
(MDL20 to MDL27) of BRGC2
Transfer rate
SCK2
clocks (TPW23 to TPW20