D6417729RHF200BV Renesas Electronics America, D6417729RHF200BV Datasheet - Page 713

• Manufacturer Part Number: D6417729RHF200BV
• Description: IC SUPER H MPU ROMLESS 208QFP
• Manufacturer: Renesas Electronics America
• Series: SuperH® SH7700r

Specifications of D6417729RHF200BV

• Core Processor: SH-3 DSP
• 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: 32K 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: -

21.3
ADDRA to ADDRD are 16-bit registers, but they are connected to the bus master by the upper 8
bits of the 16-bit peripheral data bus. Therefore, although the upper byte can be accessed directly
by the bus master, the lower byte is read through an 8-bit temporary register (TEMP).
An A/D data register is read as follows. When the upper byte is read, the upper-byte value is
transferred directly to the bus master and the lower-byte value is transferred into TEMP. Next,
when the lower byte is read, the TEMP contents are transferred to the bus master.
When reading an A/D data register, always read the upper byte before the lower byte. It is possible
to read only the upper byte, but if only the lower byte is read, the read value is not guaranteed.
Figure 21.2 shows the data flow for access to an A/D data register.
See section 21.7.3, Access Size and Read Data.
Upper byte read
Lower byte read
data H'AA
data H'40
Bus Master Interface
receives
receives
Figure 21.2 A/D Data Register Access Operation (Reading H'AA40)
CPU
CPU
interface
interface
Bus
Bus
ADDRn H
ADDRn H
[H'AA]
[H'AA]
Module internal data bus
Module internal data bus
ADDRn L
ADDRn L
TEMP
TEMP
[H'40]
[H'40]
[H'40]
[H'40]
Rev. 5.0, 09/03, page 665 of 806
n = A to D
n = A to D