Response Type Register (Rsptyr) - Renesas H8S/2158 User Manual

19.3.3

Response Type Register (RSPTYR)

RSPTYR specifies the command format in conjunction with CMDTYR. For details, refer to table
19.2.
Bit Bit Name
7, 6 —
5 RTY5
4 RTY4
3 —
2 RTY2
1 RTY1
0 RTY0
Legend:
X: Don't Care
Initial Value R/W
All 0 R
0 R/W
0 R/W
0 R
0 R/W
0 R/W
0 R/W
Section 19 Multimedia Card Interface (MCIF)
Description
Reserved
These bits are always read as 0 and cannot be
modified.
This bit is specified by the R1b response in
MMC mode/SPI mode.
Makes settings so that the command response
CRC is checked by bit CRC7. Bits RTY2 to
RTY0 should be set to B'011, B'100, or B'101.
Reserved
This bit is always read as 0 and cannot be
modified.
These bits specify the number of command
response bytes.
000: Command needs no command response
001: Command needs a 1-byte command
response (specified by R1 and R1b
responses in SPI mode)
010: Command needs a 2-byte command
response (specified by R2 response in SPI
mode)
011: Command needs a 5-byte command
response (specified by R3 response in SPI
mode)
100: Command needs a 6-byte command
response (specified by R1, R1b, R3, R4,
and R5 responses in MMC mode)
101: Command needs a 17-byte command
response (specified by R2 response in
MMC mode)
11X: Setting prohibited
Rev. 3.00 Jan 25, 2006 page 633 of 872
REJ09B0286-0300