R5F21346CNFP#U0 Renesas Electronics America, R5F21346CNFP#U0 Datasheet - Page 228

• Manufacturer Part Number: R5F21346CNFP#U0
• Description: MCU 1KB FLASH 32K ROM 48-LQFP
• Manufacturer: Renesas Electronics America
• Series: R8C/3x/34Cr

Specifications of R5F21346CNFP#U0

• Core Processor: R8C
• Core Size: 16/32-Bit
• Speed: 20MHz
• Connectivity: I²C, LIN, SIO, SSU, UART/USART
• Peripherals: POR, PWM, Voltage Detect, WDT
• Number Of I /o: 43
• Program Memory Size: 32KB (32K x 8)
• Program Memory Type: FLASH
• Ram Size: 2.5K x 8
• Voltage - Supply (vcc/vdd): 1.8 V ~ 5.5 V
• Data Converters: A/D 12x10b; D/A 2x8b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 85°C
• Package / Case: 48-LQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

R8C/34C Group
REJ09B0586-0100 Rev.1.00 Jan 13, 2010
Page 195 of 723
Figure 15.1
15.2
When the DTC is activated, control data (DTCCRj, DTBLSj, DTCCTj, DTRLDj, DTSARj, and DTDARj, j = 0 to
23) allocated in the control data area is read, and then transferred to the control registers (DTCCR, DTBLS,
DTCCT, DTRLD, DTSAR, and DTDAR) in the DTC. On completion of the DTC data transfer, the contents of the
DTC control registers are written back to the control data area.
Each DTCCR, DTBLS, DTCCT, DTRLD, DTSAR, and DTDAR register cannot be directly read or written to.
DTCCRj, DTBLSj, DTCCTj, DTRLDj, DTSARj, and DTDARj are allocated as control data at addresses from
2C40h to 2CFFh in the DTC control data area, and can be directly accessed.
Also, registers DTCTL and DTCENi (i = 0 to 6) can be directly accessed.
Registers
DTC Block Diagram
Interrupt controller
DTCEN0
DTCEN6
DTCTL
to
Peripheral interrupt
request
DTC activation
request
DTCCR
DTCCT
DTRLD
DTSAR
DTDAR
DTBLS
CPU
Bus interface
Peripheral bus
DTCCR: DTC control register
DTBLS: DTC block size register
DTCCT: DTC transfer count register
DTRLD: DTC transfer count reload register
DTSAR: DTC source address register
DTDAR: DTC destination address register
DTCTL: DTC activation control register
DTCEN0 to DTCEN6:
DTC activation enable registers 0 to 6
15. DTC