h8s-2158 Renesas Electronics Corporation., h8s-2158 Datasheet - Page 688

• Manufacturer Part Number: h8s-2158
• Description: Renesas 16-bit Single-chip Microcomputer H8s Family/h8s/2100 Series
• Manufacturer: Renesas Electronics Corporation.

Section 19 Multimedia Card Interface (MCIF)
19.3.4
TBCR specifies the number of bytes to be transferred (block size) for a block transfer command.
The block size is the number of data block bytes not including the start bit (byte in SPI mode) and
CRC. The multiblock transfer command in MMC mode corresponds to the number of bytes of
each data block. This register setting is ignored in the stream transfer command in MMC mode.
Legend:
X: Don’t Care
19.3.5
TBNCR sets the number of blocks to be transferred when multiblock transfer is specified by bit
TY5 in CMDTYR. The contents of TBNCR is decremented for every 1-block transfer completion.
When the contents of TBNCR is 0, the command sequence is terminated, and an interrupt is
generated.
Rev. 3.00 Jan 25, 2006 page 636 of 872
REJ09B0286-0300
Bit
7
to
4
3
2
1
0
Bit
15
to
0
Bit Name
—
CS3
CS2
CS1
CS0
Bit Name
—
Transfer Block Number Counter (TBNCR)
Transfer Byte Number Count Register (TBCR)
Initial Value
All 0
0
0
0
0
Initial Value
All 0
R/W
R
R/W
R/W
R/W
R/W
R/W
R/W
Transfer Block Number Counter
Description
Reserved
These bits are always read as 0 and cannot be
modified.
Transfer Data Block Size
0000: 1 byte
0001: 2 bytes
0010: 4 bytes
0011: 8 bytes
0100: 16 bytes
0101: 32 bytes
0110: 64 bytes
0111: 128 bytes
1000: 256 bytes
1001: 512 bytes
1010: 1024 bytes
1011: 2048 bytes
11XX: Setting prohibited
Description