UPD78F0535GB(T)-UEU-A NEC, UPD78F0535GB(T)-UEU-A Datasheet - Page 385
![8BIT MCU, 60K FLASH, 3KB RAM, LQFP](/photos/19/1/190186/ge64lqfp05-40_sml.jpg)
UPD78F0535GB(T)-UEU-A
Manufacturer Part Number
UPD78F0535GB(T)-UEU-A
Description
8BIT MCU, 60K FLASH, 3KB RAM, LQFP
Manufacturer
NEC
Datasheet
1.UPD78F0535GBT-UEU-A.pdf
(773 pages)
Specifications of UPD78F0535GB(T)-UEU-A
Controller Family/series
UPD78
No. Of I/o's
55
Ram Memory Size
3KB
Cpu Speed
20MHz
No. Of Timers
8
No. Of Pwm
RoHS Compliant
Core Size
8bit
Program Memory Size
60KB
Oscillator Type
External, Internal
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15.4.3 Dedicated baud rate generator
generates a serial clock for transmission/reception of UART6.
(1) Configuration of baud rate generator
The dedicated baud rate generator consists of a source clock selector and an 8-bit programmable counter, and
Separate 8-bit counters are provided for transmission and reception.
• Base clock
• Transmission counter
• Reception counter
The clock selected by bits 3 to 0 (TPS63 to TPS60) of clock selection register 6 (CKSR6) is supplied to
each module when bit 7 (POWER6) of asynchronous serial interface operation mode register 6 (ASIM6) is
1. This clock is called the base clock and its frequency is called f
when POWER6 = 0.
This counter stops operation, cleared to 0, when bit 7 (POWER6) or bit 6 (TXE6) of asynchronous serial
interface operation mode register 6 (ASIM6) is 0.
It starts counting when POWER6 = 1 and TXE6 = 1.
The counter is cleared to 0 when the first data transmitted is written to transmit buffer register 6 (TXB6).
If data are continuously transmitted, the counter is cleared to 0 again when one frame of data has been
completely transmitted. If there is no data to be transmitted next, the counter is not cleared to 0 and continues
counting until POWER6 or TXE6 is cleared to 0.
This counter stops operation, cleared to 0, when bit 7 (POWER6) or bit 5 (RXE6) of asynchronous serial
interface operation mode register 6 (ASIM6) is 0.
It starts counting when the start bit has been detected.
The counter stops operation after one frame has been received, until the next start bit is detected.
CHAPTER 15 SERIAL INTERFACE UART6
User’s Manual U17260EJ6V0UD
XCLK6
. The base clock is fixed to low level
385
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