HD6417750RF200DV Renesas Electronics America, HD6417750RF200DV Datasheet - Page 686
HD6417750RF200DV
Manufacturer Part Number
HD6417750RF200DV
Description
MPU 1.5/3.3V 0K I-TEMP PB-FREE 2
Manufacturer
Renesas Electronics America
Series
SuperH® SH7750r
Datasheet
1.D6417750RBP240DV.pdf
(1164 pages)
Specifications of HD6417750RF200DV
Core Processor
SH-4
Core Size
32-Bit
Speed
200MHz
Connectivity
EBI/EMI, FIFO, SCI, SmartCard
Peripherals
DMA, POR, WDT
Number Of I /o
28
Program Memory Type
ROMless
Ram Size
48K x 8
Voltage - Supply (vcc/vdd)
1.35 V ~ 1.6 V
Oscillator Type
External
Operating Temperature
-40°C ~ 85°C
Package / Case
208-QFP Exposed Pad, 208-eQFP, 208-HQFP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Program Memory Size
-
Data Converters
-
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Section 14 Direct Memory Access Controller (DMAC)
Conditions for Ending Transfer on Individual Channels: Transfer ends on the corresponding
channel when either of the following conditions is satisfied:
• The value in the DMA transfer count register (DMATCR) reaches 0.
• The DE bit in the DMA channel control register (CHCR) is cleared to 0.
1. End of transfer when DMATCR = 0
2. End of transfer when DE = 0 in CHCR
Conditions for Ending Transfer Simultaneously on All Channels: Transfer ends on all
channels simultaneously when either of the following conditions is satisfied:
• The address error bit (AE) or NMI flag (NMIF) in the DMA operation register (DMAOR) is
• The DMA master enable bit (DME) in DMAOR is cleared to 0.
1. End of transfer when AE = 1 in DMAOR
Rev.7.00 Oct. 10, 2008 Page 600 of 1074
REJ09B0366-0700
When the DMATCR value reaches 0, DMA transfer ends on the corresponding channel and
the transfer end flag (TE) in CHCR is set. If the interrupt enable bit (IE) is set at this time, an
interrupt (DMTE) request is sent to the CPU.
Transfer ending when DMATCR = 0 does not follow the procedures described in 1 to 4 in
section 14.3.6, Ending DMA Transfer.
When the DMA enable bit (DE) in CHCR is cleared, DMA transfer is suspended on the
corresponding channel. The TE bit is not set in this case. Transfer ending in this case follows
the procedures described in 1 to 4 in section 14.3.6, Ending DMA Transfer.
set to 1.
If the AE bit in DMAOR is set to 1 due to an address error, DMA transfer is suspended on all
channels in accordance with the conditions in 1 to 4 in section 14.3.6, Ending DMA Transfer,
and the bus is passed to the CPU. Therefore, when AE is set to 1, the values in the DMA
source address register (SAR), DMA destination address register (DAR), and DMA transfer
count register (DMATCR) indicate the addresses for the DMA transfer to be performed next
and the remaining number of transfers. The TE bit is not set in this case. Before resuming
transfer, it is necessary to make a new setting for the channel that caused the address error,
then write 0 to the AE bit after first reading 1 from it. Acceptance of external requests is
suspended while AE is set to 1, so a DMA transfer request must be reissued when resuming
transfer. Acceptance of internal requests is also suspended, so when resuming transfer, the
DMA transfer request enable bit for the relevant on-chip peripheral module must be cleared to
0 before the new setting is made.
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