Register In Extended I/O Serial Interface - Fujitsu MB90335 Series Hardware Manual

MB90335 Series
17.2

Register in Extended I/O Serial Interface

The configuration and functions of registers used in the extended I/O serial interface
are described.
■ List of Register in Extended I/O Serial Interface
Figure 17.2-1 shows the list of register in extended I/O serial interface.
SMCS
Address : 000059
SMCS
: 000058
Address
SDR
Address
: 00005A
SDCR
: 00005B
Address
R/W : Readable/Writable
R : Read only
: Undefined
X : Undefined value
CM44-10137-6E
Figure 17.2-1 List of Register in Extended I/O Serial Interface
bit 15 14 13
SMD2 SMD1 SMD0
H
(R/W) (R/W) (R/W) (R/W) (R/W)
bit 7 6 5
H
bit 5
7 6
D7
D6 D5
H
(R/W) (R/W) (R/W) (R/W) (R/W) (R/W) (R/W) (R/W)
bit 15 14 13
MD
H
(R/W)
FUJITSU MICROELECTRONICS LIMITED
CHAPTER 17 EXTENDED I/O SERIAL INTERFACE
17.2 Register in Extended I/O Serial Interface
12 11 10 9
SIE SIR BUSY STRT
STOP
(R) (R/W) (R/W)
4 3 2 1
MODE BDS SOE SCOE
(R/W) (R/W) (R/W) (R/W)
4 3 2
1
D1
D4 D3 D2
12 11 10 9
DIV3 DIV2 DIV1
(R/W) (R/W) (R/W) (R/W)
8
Serial mode control
status register (SMCS)
Initial value 00000010
0
Serial mode control
status register (SMCS)
Initial value
XXXX0000
0
Serial data register (SDR)
D0
Initial value XXXXXXXX
8
Communication prescaler
DIV0
control register (SDCR)
Initial value
0XXX0000
B
B
B
B
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