D6417729RHF200BV Renesas Electronics America, D6417729RHF200BV Datasheet - Page 476
![IC SUPER H MPU ROMLESS 208QFP](/photos/12/31/123145/d6417729rhf200bv_sml.jpg)
D6417729RHF200BV
Manufacturer Part Number
D6417729RHF200BV
Description
IC SUPER H MPU ROMLESS 208QFP
Manufacturer
Renesas Electronics America
Series
SuperH® SH7700r
Datasheet
1.D6417729RF133BV.pdf
(857 pages)
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
-
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12.5.2
In this example, DMA transfer is performed between the on-chip A/D converter (transfer source)
and the external memory (transfer destination) with the address reload function on. Table 12.9
shows the transfer conditions and register settings.
Table 12.9 Transfer Conditions and Register Settings for Transfer between On-Chip A/D
Transfer Conditions
Transfer source: On-chip A/D converter
Transfer destination: External memory
Number of transfers: 128 (reloading 32 times)
Transfer source address: Incremented
Transfer destination address: Decremented
Transfer request source: A/D converter
Bus mode: Burst
Transfer unit: Longword
Interrupt request generated at end of transfer
Channel priority order: 0 > 2 > 3 > 1
When the address reload function is on, the value set in SAR returns to the initially set value every
four transfers. In this example, when an interrupt request is generated from the A/D converter,
byte data is read from the register at address H'04000080 in the A/D converter, and is written to
external memory address H'00400000. Since longword data has been transferred, the values in
SAR and DAR are H'04000084 and H'003FFFFC, respectively. The bus is kept and data transfers
are performed successively because this transfer is in burst mode.
After four transfers end, fifth and sixth transfers are performed if the address reload function is off,
and the value in SAR is incremented from H'0400008C to H'04000090, H'04000094
address reload function is on, DMA transfer stops after the fourth transfer ends, and the bus
request signal to the CPU is cleared. At this time, the value stored in SAR is not incremented
from H'0400008C to H'04000090, but returns to the initially set value, H'04000080. The value in
DAR continues to be incremented regardless of whether the address reload function is on or off.
Rev. 5.0, 09/03, page 428 of 806
Example of DMA Transfer between A/D Converter and External Memory
(Address Reload On)
Converter and External Memory
SAR2
DAR2
CHCR2
Register
DMATCR2
DMAOR
Setting
H'04000080
H'00400000
H'00000080
H'00089E35
H'0101
If the
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