HD64F7051SFJ20V Renesas Electronics America, HD64F7051SFJ20V Datasheet - Page 172
![MCU 5V 256K J-TEMP PB-FREE QFP-1](/photos/28/62/286212/168-bqfp_sml.jpg)
HD64F7051SFJ20V
Manufacturer Part Number
HD64F7051SFJ20V
Description
MCU 5V 256K J-TEMP PB-FREE QFP-1
Manufacturer
Renesas Electronics America
Series
SuperH® SH7050r
Datasheet
1.HD64F7050SFJ20V.pdf
(843 pages)
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
-
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
HD64F7051SFJ20V
Manufacturer:
RENESAS
Quantity:
101
Part Number:
HD64F7051SFJ20V
Manufacturer:
RENESAS/瑞萨
Quantity:
20 000
- Current page: 172 of 843
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Section 9 Direct Memory Access Controller (DMAC)
Even when the DME bit is set, when the TE bit of the CHCR is 1, or its DE bit is 0, transfer is
disabled in the case of an NMI of the DMAOR or when AE = 1.
Bit 0: DME
0
1
9.3
When there is a DMA transfer request, the DMAC starts the transfer according to the
predetermined channel priority order; when the transfer end conditions are satisfied, it ends the
transfer. Transfers can be requested in three modes: auto-request, external request, and on-chip
peripheral module request. Transfer can be in either the single address mode or the dual address
mode, and dual address mode can be either direct or indirect address transfer mode. The bus mode
can be either burst or cycle steal.
9.3.1
After the DMA source address registers (SAR), DMA destination address registers (DAR), DMA
transfer count register (DMATCR), DMA channel control registers (CHCR), and DMA operation
register (DMAOR) are set to the desired transfer conditions, the DMAC transfers data according
to the following procedure:
1. The DMAC checks to see if transfer is enabled (DE = 1, DME = 1, TE = 0, NMIF = 0,
2. When a transfer request comes and transfer has been enabled, the DMAC transfers 1 transfer
3. When the specified number of transfers have been completed (when DMATCR reaches 0), the
4. When an address error occurs in the DMAC or an NMI interrupt is generated, the transfer is
Rev. 5.00 Jan 06, 2006 page 150 of 818
REJ09B0273-0500
AE = 0).
unit of data (determined by TS0 and TS1 setting). For an auto-request, the transfer begins
automatically when the DE bit and DME bit are set to 1. The DMATCR value will be
decremented by 1 upon each transfer. The actual transfer flows vary by address mode and bus
mode.
transfer ends normally. If the IE bit of the CHCR is set to 1 at this time, a DEI interrupt is sent
to the CPU.
aborted. Transfers are also aborted when the DE bit of the CHCR or the DME bit of the
DMAOR are changed to 0.
Operation
DMA Transfer Flow
Description
Disable operation on all channels (initial value)
Enable operation on all channels
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