HD6417712BPV Renesas Electronics America, HD6417712BPV Datasheet - Page 520

• Manufacturer Part Number: HD6417712BPV
• Description: MPU 1.5/3.3V 0K PB-FREE 256-BGA
• Manufacturer: Renesas Electronics America
• Series: SuperH® SH Ethernetr

Specifications of HD6417712BPV

• Core Processor: SH-3 DSP
• Core Size: 32-Bit
• Speed: 200MHz
• Connectivity: EBI/EMI, Ethernet, FIFO, SCI, SIO
• Peripherals: DMA, POR, WDT
• Number Of I /o: 24
• Program Memory Type: ROMless
• Ram Size: 16K x 8
• Voltage - Supply (vcc/vdd): 1.4 V ~ 1.6 V
• Oscillator Type: External
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 256-BGA
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Program Memory Size: -
• Data Converters: -

Section 13 Direct Memory Access Controller (DMAC)
Figure 13.2 is a flowchart of this procedure.
Rev. 1.00 Dec. 27, 2005 Page 476 of 932
REJ09B0269-0100
Notes: *1 In auto-request mode, transfer begins when NMIF, AE and TE are all 0 and the DE and DME
(SAR, DAR, DMATCR, CHCR, DMAOR, DMARS)
*2 DREQ = level detection in burst mode (external request) or cycle-steal mode.
*3 DREQ = edge detection in burst mode (external request), or auto-request mode in burst mode.
DMATCR – 1 → DMATCR, SAR and DAR
DEI interrupt request (when IE = 1)
bits are set to 1.
or AE = 1 or DE = 0
NMIF, AE, TE = 0?
Transfer (1 transfer unit);
DE, DME = 1 and
Transfer request
DMATCR = 0?
or DME = 0?
Yes
Transfer end
Initial settings
Yes
occurs?*
Yes
Yes
NMIF = 1
TE = 1
Start
updated
Figure 13.2 DMA Transfer Flowchart
1
No
No
No
No
Normal end
*
3
DREQ detection selection
transfer request mode,
or AE = 1 or DE = 0
Transfer aborted
or DME = 0?
Bus mode,
Yes
NMIF = 1
system
*
2
No