HD6413003RVF RENESAS [Renesas Technology Corp], HD6413003RVF Datasheet - Page 156
HD6413003RVF
Manufacturer Part Number
HD6413003RVF
Description
microcontroller (MCU)
Manufacturer
RENESAS [Renesas Technology Corp]
Datasheet
1.HD6413003RVF.pdf
(715 pages)
- Current page: 156 of 715
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7.2 Register Descriptions
7.2.1 Refresh Control Register (RFSHCR)
RFSHCR is an 8-bit readable/writable register that selects the operating mode of the refresh
controller.
RFSHCR is initialized to H'02 by a reset and in hardware standby mode.
Bit
Initial value
Read/Write
Self-refresh mode
Selects self-refresh mode
SRFMD
R/W
7
0
PSRAM enable and DRAM enable
These bits enable or disable connection of pseudo-static RAM and DRAM
PSRAME
R/W
6
0
DRAME
R/W
5
0
Strobe mode select
Selects 2CAS or 2WE strobing of DRAM
CAS/WE
138
R/W
4
0
Address multiplex mode select
Selects the number of column address bits
M9/M8
R/W
3
0
Refresh pin enable
Enables refresh signal output
from the refresh pin
RFSHE
R/W
2
0
Reserved bit
—
—
1
1
Refresh cycle
enable
Enables or
disables
insertion of
refresh cycles
RCYCE
R/W
0
0
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