em6522 EM Microelectronic, em6522 Datasheet - Page 26

• Manufacturer Part Number: em6522
• Description: Mfp Version Of Em6622 Ultra Low Power Microcontroller With 4x32 Lcd Driver
• Manufacturer: EM Microelectronic

6.7 Serial Interface Registers
Table 6.7.1 Register RegSCntl1
Table 6.7.2 Frequency and Master Slave Mode Selection
Table 6.7.3 Register RegSCntl2
Table 6.7.4 Register RegSDataL
Table 6.7.5 Register RegSDataH
Copyright © 2005, EM Microelectronic-Marin SA
MS1
0
0
1
1
Bit
Bit
Bit
Bit
3
2
1
0
3
2
1
0
3
2
1
0
3
2
1
0
Default "0" is: Slave mode external clock, negative edge, LSB first
Default "0" is: Interface disabled, status 0, serial mode, output tristate.
Default "0" is: Data equal 0.
Default "0" is: Data equal 0.
R
SerDataH[3]
SerDataH[2]
SerDataH[1]
SerDataH[0]
SerDataL[3]
SerDataL[2]
SerDataL[1]
SerDataL[0]
MSBnLSB
POSnNeg
Status
Name
Name
OM[1]
OM[0]
Name
Name
MS0
0
1
0
1
Start
MS1
MS0
Reset
Reset
Reset
Reset
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Description
Slave mode: Clock from external
Master mode: System clock / 4
Master mode: System clock / 2
Master mode: System clock
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
26
Positive or negative clock edge selection for
Ready or Chip Select output on PSP[1]
Shift MSB or LSB value first
Enabling the interface,
Serial data high nibble
Serial data high nibble
Serial data high nibble
Serial data high nibble
Output mode select 1
Output mode select 0
Serial data low nibble
Serial data low nibble
Serial data low nibble
Serial data low nibble
Frequency selection
Frequency selection
shift operation
Description
Description
Description
Description
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EM6522