UPD78F0500AMC-CAB-AX Renesas Electronics America, UPD78F0500AMC-CAB-AX Datasheet - Page 520

• 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
R01UH0008EJ0401 Rev.4.01
Jul 15, 2010
Address: FF93H
(4) Divisor selection register 0 (BRGCA0)
BRGCA0
Symbol
This is an 8-bit register used to select the base clock divisor of CSIA0.
This register can be set by an 8-bit memory manipulation instruction. However, when bit 0 (TSF0) of serial status
register 0 (CSIS0) is 1, rewriting BRGCA0 is prohibited.
Reset signal generation sets this register to 03H.
Note Set the transfer clock so as to satisfy the following conditions.
Remark f
• When 4.0 V ≤ V
• When 2.7 V ≤ V
• When 1.8 V ≤ V
only)
BRGCA01
f
W
PRS
:
After reset: 03H
: Peripheral hardware clock frequency
7
0
0
0
1
1
Base clock frequency selected by CKS00 bit of CSIS0 register (f
Figure 17-5. Format of Divisor Selection Register 0 (BRGCA0)
BRGCA00
DD
DD
DD
6
0
0
1
0
1
≤ 5.5 V: transfer clock ≤ 1.67 MHz
< 4.0 V: transfer clock ≤ 833.33 kHz
< 2.7 V: transfer clock ≤ 555.56 kHz (Standard products and (A) grade products
R/W
f
f
f
f
W
W
W
W
/6
/2
/2
/2
3
4
5
5
0
166.67 kHz
125 kHz
62.5 kHz
31.25 kHz
f
W
= 1 MHz f
Selection of base clock (f
4
0
333.3 kHz
250 kHz
125 kHz
62.5 kHz
W
= 2 MHz
CHAPTER 17 SERIAL INTERFACE CSIA0
3
0
f
416.67 kHz
312.5 kHz
156.25 kHz
78.125 kHz
W
= 2.5 MHz
W
) divisor of CSIA0
833.33 kHz
625 kHz
312.5 kHz
156.25 kHz
f
W
2
0
= 5 MHz f
PRS
or f
BRGCA01
1.67 MHz
1.25 MHz
625 kHz
312.5 kHz
W
PRS
= 10 MHz f
Note
/2)
1
Setting prohibited
Setting prohibited
1.25 MHz
625 kHz
W
BRGCA00
= 20 MHz
0
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