SH7763 Datasheet, PDF (1383/2026 Pages) Renesas Technology Corp – Renesas 32-Bit RISC Microcomputer SuperHTM RISC Engine Family SH-4A Series

Section 31 Multimedia Card Interface (MMCIF)
31.3.15 VDD/Open-Drain Control Register (VDCNT)
VDCNT can use the MMC_ODMOD pin to control open-drain in MMC mode. MMC_VDDON
output is available for ON/OFF of the card power supply (VDD).
Bit: 7
6
5
4
3
2
1
0
VDDON ODMOD —
—
—
—
—
—
Initial value: 0
0
0
0
0
0
0
0
R/W: R/W R/W R
R
R
R
R
R
Bit
7
6
5 to 0
Initial
Bit Name Value R/W
VDDON 0
R/W
ODMOD 0
R/W
—
All 0 R
Description
Available as a control signal for card power supply
(VDD)
0: Low level signal is output to MMC_VDDON.
1: High level signal is output to MMC_VDDON.
Available to control open-drain of CMD output in MMC
mode
0: Low level signal is output to MMC_ODMOD.
1: High level signal is output to MMC_ODMOD.
Reserved
These bits are always read as 0. The write value should
always be 0.
Rev. 1.00 Oct. 01, 2007 Page 1317 of 1956
REJ09B0256-0100