HD6417705F133BV Renesas Electronics America, HD6417705F133BV Datasheet - Page 300
HD6417705F133BV
Manufacturer Part Number
HD6417705F133BV
Description
MPU 3V 0K PB-FREE 208 FP
Manufacturer
Renesas Electronics America
Series
SuperH® SH7700r
Datasheet
1.HD6417705F133BV.pdf
(741 pages)
Specifications of HD6417705F133BV
Core Processor
SH-3
Core Size
32-Bit
Speed
133MHz
Connectivity
EBI/EMI, FIFO, IrDA, SCI, USB
Peripherals
DMA, POR, PWM, WDT
Number Of I /o
105
Program Memory Type
ROMless
Ram Size
32K x 8
Voltage - Supply (vcc/vdd)
1.4 V ~ 1.6 V
Data Converters
A/D 4x10b
Oscillator Type
Internal
Operating Temperature
-20°C ~ 75°C
Package / Case
208-LQFP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Program Memory Size
-
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8.4
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. In bus mode, burst mode or cycle steal mode can be selected.
8.4.1
After the DMA source address registers (SAR), DMA destination address registers (DAR), DMA
transfer count registers (DMATCR), DMA channel control registers (CHCR), DMA operation
register (DMAOR), and DMA extended resource selector (DMARS) are set, the DMAC transfers
data according to the following procedure:
1. Checks to see if transfer is enabled (DE = 1, DME = 1, TE = 0, AE = 0, NMIF = 0)
2. When a transfer request is generated and transfer is enabled, the DMAC transfers 1 transfer
3. When the specified number of transfer have been completed (when DMATCR reaches 0), the
4. When an address error or an NMI interrupt is generated, the transfer is aborted. Transfers are
Rev. 2.00, 09/03, page 252 of 690
unit of data (depending on the TS0 and TS1 settings). 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 for each transfer. The actual transfer flows vary by address mode and bus mode.
transfer ends normally. If the IE bit in CHCR is set to 1 at this time, a DEI interrupt is sent to
the CPU.
also aborted when the DE bit in CHCR or the DME bit in DMAOR are cleared to 0.
Operation
Transfer Flow
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