HD6417712BPV Renesas Electronics America, HD6417712BPV Datasheet - Page 534

• 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)
DREQ Pin Sampling Timing:
Rev. 1.00 Dec. 27, 2005 Page 490 of 932
REJ09B0269-0100
Figure 13.13 Example of DREQ Input Detection in Cycle Steal Mode Level Detection
Figure 13.12 Example of DREQ Input Detection in Cycle Steal Mode Edge Detection
CKIO
Bus cycle
DREQ
(Overrun 0 at
high level)
DACK
(Active-high)
CKIO
Bus cycle
DREQ
(Overrun 1 at
high level)
DACK
(Active-high)
CKIO
Bus cycle
DREQ
(Rising)
DACK
(Active-high)
1st acceptance
1st acceptance
1st acceptance
CPU
CPU
Non sensitive period
CPU
Non sensitive period
Non sensitive period
CPU
CPU
CPU
2nd acceptance
DMAC
Acceptance
start
DMAC
DMAC
Acceptance start
2nd acceptance
2nd acceptance
Acceptance
start
CPU
CPU
CPU