D6417709SHF200BV Renesas Electronics America, D6417709SHF200BV Datasheet - Page 405

• Manufacturer Part Number: D6417709SHF200BV
• Description: IC SUPER H MPU ROMLESS 208LQFP
• Manufacturer: Renesas Electronics America
• Series: SuperH® SH7700r

Specifications of D6417709SHF200BV

• Core Processor: SH-3
• Core Size: 32-Bit
• Speed: 200MHz
• Connectivity: EBI/EMI, FIFO, IrDA, SCI, SmartCard
• Peripherals: DMA, POR, WDT
• Number Of I /o: 96
• Program Memory Type: ROMless
• Ram Size: 16K x 8
• Voltage - Supply (vcc/vdd): 1.85 V ~ 2.15 V
• Data Converters: A/D 8x10b; D/A 2x8b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 75°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: -

Bus Modes: There are two bus modes: cycle-steal and burst. Select the mode in the TM bits of
CHCR0–CHCR3.
(16-byte Transfer, External Memory Space (Ordinary Memory)
Cycle-Steal Mode
In cycle-steal mode, the bus is given to another bus master after a one-transfer-unit (byte,
word, longword, or 16-byte unit) DMAC. When another transfer request occurs, the bus is
obtained from the other bus master and transfer is performed for one transfer unit. When that
transfer ends, the bus is passed to the other bus master. This is repeated until the transfer end
conditions are satisfied.
In the cycle-steal mode, transfer areas are not affected regardless of the transfer request source,
transfer source, and transfer destination settings. Figure 11.12 shows an example of DMA
transfer timing in cycle-steal mode. Transfer conditions shown in the figure are:
Dual address mode
DREQ level detection
Figure 11.11 Example of DMA Transfer Timing in Single Address Mode
D31 to D0
A25 to A0
DACKn
CKIO
WEn
CSn
RD
source address
Transfer
DACK)
+4
+8
Rev. 5.00, 09/03, page 359 of 760
+12
External Device with