HD64F7051SFJ20V Renesas Electronics America, HD64F7051SFJ20V Datasheet - Page 158

• 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)
Rev. 5.00 Jan 06, 2006 page 136 of 818
REJ09B0273-0500
Reload function: Enables automatic reloading of the value set in the first source address
register every fourth DMA transfer. This function can be executed on channel 2 only.
Transfer requests: There are three DMAC transfer activation requests, as indicated below.
Selectable bus modes: Cycle-steal mode or burst mode
Two types of DMAC channel priority ranking:
CPU can be interrupted when the specified number of data transfers are complete.
Channel 3: Dual address mode only. Direct address transfer mode and indirect address
transfer mode selectable.
External request: From two DREQ pins. DREQ can be detected either by falling edge or by
low level. External requests can only be received on channels 0 or 1.
Requests from on-chip peripheral modules: Transfer requests from on-chip modules such
as SCI or A/D. These can be received by all channels.
Auto-request: The transfer request is generated automatically within the DMAC.
Fixed priority mode: Always fixed
Round robin mode: Sets the lowest priority level for the channel that received the execution
request last