Fujitsu MB90390 Series Hardware Manual page 469

■ Lower Byte of Serial Mode Control Status Register (SMCS)
Figure 22.2-2 Configuration of the Serial Mode Control Status Register (Lower Byte)
Address
00002C
H
R/W : Readable and writable
X : Undefined value
- : Undefined
: Initial value
bit7 bit6 bit5 bit4
- - - -
- - - -
bit3 bit2 bit1 bit0
MODE BDS SOE SCOE
R/W R/W R/W R/W
SCOE Shift Clock Output Enable bit
General-purpose port pin, transfer for each
0
instruction.
1 Shift Clock output pin.
SOE
0 General-purpose port pin.
1 Serial data output.
BDS
0 LSB first.
1 MSB first.
MODE Serial Mode Selection bit
0 Transfer starts when STRT = 1.
T r ansfer starts, when the serial data register is
1
read or written to.
CHAPTER 22 SERIAL I/O
Initial value
XXXX0000
Serial Output Enable bit
Bit Direction Select bit
B
441