h8s-2158 Renesas Electronics Corporation., h8s-2158 Datasheet - Page 698

• 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)
Rev. 3.00 Jan 25, 2006 page 646 of 872
REJ09B0286-0300
Bit
3
2
1
0
Bit Name
DTBUSY
DTBUSY_TU
—
REQ
Initial Value
0
—
0
0
R/W
R
R
R
R
Description
Data Busy
Indicates command execution status. Indicates
that the MMC is in the busy state during or after
the command sequence of a command without
data transfer, which includes the busy state in
the response, or of a command with write data
has been ended.
0: Idle state waiting for a command, or
1: MMC indicates data busy after command
Data Busy Pin Status
Monitors level of the MCDAT pin in MMC mode
or MCRxD pin in SPI mode.
This bit is monitored to confirm whether the
MMC is in busy state by deselecting the MMC in
busy state, and then selecting the MMC, again.
Reserved
This bit is always read as 0 and cannot be
modified.
Interrupt Request
Indicates whether an interrupt is requested. An
interrupt request is the logical sum of the
INTSTR0 and INTSTR1 flags. The INTSTR0
and INTSTR1 flags are set by the enable bits in
INTCR0 and INTCR1.
0: No interrupts requested.
1: An interrupt is requested.
command sequence execution in progress
sequence ends.