HD64F7051SFJ20V Renesas Electronics America, HD64F7051SFJ20V Datasheet - Page 208

• Manufacturer Part Number: HD64F7051SFJ20V
• Description: MCU 5V 256K J-TEMP PB-FREE QFP-1
• Manufacturer: Renesas Electronics America
• Series: SuperH® SH7050r

Specifications of HD64F7051SFJ20V

• Core Processor: SH-2
• Core Size: 32-Bit
• Speed: 20MHz
• Connectivity: EBI/EMI, SCI
• Peripherals: DMA, WDT
• Number Of I /o: 102
• Program Memory Size: 256KB (256K x 8)
• Program Memory Type: FLASH
• Ram Size: 10K x 8
• Voltage - Supply (vcc/vdd): 4.5 V ~ 5.5 V
• Data Converters: A/D 16x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 168-QFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

Section 9 Direct Memory Access Controller (DMAC)
9.3.11
Channel 2 has a source address reload function. This returns to the first value set in the source
address register (SAR2) every four transfers by setting the RO bit of CHCR2 to 1. Figure 9.25
illustrates this operation. Figure 9.26 is a timing chart for reload ON mode, with burst mode,
autorequest, 16-bit transfer data size, SAR2 increment, and DAR2 fixed mode.
Rev. 5.00 Jan 06, 2006 page 186 of 818
REJ09B0273-0500
Transfer
request
Source Address Reload Function
DMAC
DMAC control block
Figure 9.25 Source Address Reload Function
Reload control
4th count
Reload signal
Count signal
RO bit = 1
Reload
signal
(initial value)
DMATCR2
CHCR2
SAR2
SAR2