HD6417020SVX12I Renesas Electronics America, HD6417020SVX12I Datasheet - Page 213
HD6417020SVX12I
Manufacturer Part Number
HD6417020SVX12I
Description
IC SUPERH MPU ROMLESS 100TQFP
Manufacturer
Renesas Electronics America
Series
SuperH® SH7020r
Datasheet
1.HD6417020SVX12IV.pdf
(511 pages)
Specifications of HD6417020SVX12I
Core Processor
SH-1
Core Size
32-Bit
Speed
12.5MHz
Connectivity
EBI/EMI, SCI
Peripherals
DMA, POR, PWM, WDT
Number Of I /o
32
Program Memory Type
ROMless
Ram Size
1K x 8
Voltage - Supply (vcc/vdd)
3 V ~ 5.5 V
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
100-TQFP, 100-VQFP
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Eeprom Size
-
Program Memory Size
-
Data Converters
-
Available stocks
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Part Number:
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Quantity:
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• Dual Address Mode
1. External memory and external memory transfer
2. External memory and memory-mapped external devices transfer
3. Memory-mapped external devices and memory-mapped external devices transfer
4. External memory and on-chip memory transfer
5. External memory and on-chip peripheral modules (excluding the DMAC) transfer
6. Memory-mapped external devices and on-chip memory transfer
7. Memory-mapped external devices and on-chip peripheral modules (excluding the DMAC)
8. On-chip memory and on-chip memory transfer
9. On-chip memory and on-chip peripheral modules (excluding the DMAC) transfer
10. On-chip peripheral modules (excluding the DMAC) and on-chip peripheral modules
194 RENESAS
In the dual address mode, both the transfer source and destination are accessed (selectable) by
an address. The source and destination can be located externally or internally. The source is
accessed in the read cycle and the destination in the write cycle, so the transfer is performed in
two separate bus cycles. The transfer data is temporarily stored in the DMAC. Figure 9.8
shows an example of a transfer between two external memories in which data is read from one
memory in the read cycle and written to the other memory in the following write cycle.
In the dual address mode transfers, external memory, memory-mapped external devices, on-
chip memory and on-chip peripheral modules can be mixed without restriction. Specifically,
this enables the following transfer types:
transfer
(excluding the DMAC) transfer
SuperH microcomputer
Figure 9.8 Data Flow in Dual Address Mode
DMAC
1: Read cycle
2: Write cycle
External data bus
: Data flow
2
1
External
External
memory
memory
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