UPD70F3740GC-UEU-AX Renesas Electronics America, UPD70F3740GC-UEU-AX Datasheet - Page 510

• Manufacturer Part Number: UPD70F3740GC-UEU-AX
• Description: MCU 32BIT V850ES/JX3 100-LQFP
• Manufacturer: Renesas Electronics America
• Series: V850ES/Jx3r

Specifications of UPD70F3740GC-UEU-AX

• Core Processor: RISC
• Core Size: 32-Bit
• Speed: 32MHz
• Connectivity: CSI, EBI/EMI, I²C, UART/USART
• Peripherals: DMA, LVD, PWM, WDT
• Number Of I /o: 84
• Program Memory Size: 512KB (512K x 8)
• Program Memory Type: FLASH
• Ram Size: 40K x 8
• Voltage - Supply (vcc/vdd): 2.85 V ~ 3.6 V
• Data Converters: A/D 12x10b; D/A 2x8b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: *
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

V850ES/JG3
R01UH0015EJ0300 Rev.3.00
Sep 30, 2010
(4) CSIBn status register (CBnSTR)
CBnSTR is an 8-bit register that displays the CSIBn status.
This register can be read or written in 8-bit or 1-bit units, but the CBnTSF flag is read-only.
Reset sets this register to 00H.
In addition to reset input, the CBnSTR register can be initialized by clearing (0) the CBnCTL0.CBnPWR bit.
(n = 0 to 4)
CBnSTR
After reset 00H
CBnOVE
• An overrun error occurs when the next reception completes without reading the
• The CBnOVE bit is valid also in the single transfer mode. Therefore, when only
• The CBnOVE flag is cleared by writing 0 to it. It cannot be set even by writing 1 to it.
CBnTSF
• During transmission, this register is set when data is prepared in the CBnTX
CBnTSF
value of the receive buffer by CPU, upon completion of the receive operation.
The CBnOVE flag displays the overrun error occurrence status in this case.
using transmission, note the following.
• Do not check the CBnOVE flag.
• Read this bit even if reading the reception data is not required.
register, and during reception, it is set when a dummy read of the CBnRX register
is performed.
When transfer ends, this flag is cleared to 0 at the last edge of the clock.
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0
1
0
1
R/W
Communication stopped
Communicating
No overrun
Overrun
0
Address: CB0STR FFFFFD03H, CB1STR FFFFFD13H,
CHAPTER 16 3-WIRE VARIABLE-LENGTH SERIAL I/O (CSIB)
0
CB2STR FFFFFD23H, CB3STR FFFFFD33H,
CB4STR FFFFFD43H
Communication status flag
0
Overrun error flag
0
0
0
CBnOVE
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