UPD78F0500AMC-CAB-AX Renesas Electronics America, UPD78F0500AMC-CAB-AX Datasheet - Page 484

• Manufacturer Part Number: UPD78F0500AMC-CAB-AX
• Description: MCU 8BIT 30SSOP
• Manufacturer: Renesas Electronics America
• Series: 78K0/Kx2r

Specifications of UPD78F0500AMC-CAB-AX

• Core Processor: 78K/0
• Core Size: 8-Bit
• Speed: 20MHz
• Connectivity: 3-Wire SIO, I²C, LIN, UART/USART
• Peripherals: LVD, POR, PWM, WDT
• Number Of I /o: 23
• Program Memory Size: 8KB (8K x 8)
• Program Memory Type: FLASH
• Ram Size: 512 x 8
• Voltage - Supply (vcc/vdd): 1.8 V ~ 5.5 V
• Data Converters: A/D 4x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: *
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

78K0/Kx2
(2) Generation of serial clock
15.4.4 Calculation of baud rate
(1) Baud rate calculation expression
R01UH0008EJ0401 Rev.4.01
Jul 15, 2010
A serial clock to be generated can be specified by using clock selection register 6 (CKSR6) and baud rate generator
control register 6 (BRGC6).
The clock to be input to the 8-bit counter can be set by bits 3 to 0 (TPS63 to TPS60) of CKSR6 and the division value
(f
The baud rate can be calculated by the following expression.
• Baud rate =
f
k:
XCLK6
XCLK6
Remark POWER6: Bit 7 of asynchronous serial interface operation mode register 6 (ASIM6)
: Frequency of base clock selected by TPS63 to TPS60 bits of CKSR6 register
/4 to f
Value set by MDL67 to MDL60 bits of BRGC6 register (k = 4, 5, 6, ..., 255)
event counter
XCLK6
8-bit timer/
50 output
f
2 × k
TXE6:
RXE6:
CKSR6:
BRGC6:
XCLK6
f
/255) of the 8-bit counter can be set by bits 7 to 0 (MDL67 to MDL60) of BRGC6.
PRS
f
f
f
f
f
f
f
f
PRS
PRS
PRS
PRS
PRS
PRS
PRS
PRS
f
PRS
/2
f
PRS
/2
/2
/2
/2
/2
/2
/2
/2
[bps]
/2
10
2
3
4
5
6
7
8
9
CKSR6: TPS63 to TPS60
Bit 6 of ASIM6
Baud rate generator control register 6
Bit 5 of ASIM6
Clock selection register 6
Figure 15-24. Configuration of Baud Rate Generator
POWER6
Selector
f
XCLK6
POWER6, TXE6 (or RXE6)
BRGC6: MDL67 to MDL60
Match detector
8-bit counter
Baud rate generator
CHAPTER 15 SERIAL INTERFACE UART6
1/2
Baud rate
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