HT46R068B/HT46R069B
Enhanced A/D Type 8-bit OTP MCU
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SPIA Block Diagram
● SBCR Register
Bit
Name
R/W
7
6
5
4
SBEN
R/W
0
3
2
1
0
CKS
R/W
0
M1
R/W
1
M0
R/W
1
MLSA
R/W
0
CSENA WCOLA
R/W
0
TRFA
R/W
0
R/W
0
POR
Bit 7
CKS: SPIA Clock Source Select Bit
0: fSPIA =fSYS/4
1: fSPIA =fLXT
Bit 6,5
M1,M0: Master/Slave/Baud Rate Bits
00: Master, Baud rate : fSPIA
01: Master, Baud rate : fSPIA /4
10: Master, Baud rate : fSPIA /16
11: Slave mode
Bit 4
SBEN: Serial Bus Enable/Disable bit
0: Disable
1: Enable
Dependent upon CSEN bit
Bit 3
Bit 2
Bit 1
Bit 0
MLSA: MSB/LSB First Bit
0: LSB shift first
1: MSB shift first
CSENA: Selection Signal Enable/Disable Bit
0: SCSA floating
1: Enable
WCOLA: Write Collision Bit
0: Collision free
1: Collision detected
TRFA: Transmit /Receive Flag
0: Not complete
1: Transmission/reception complete
Note: The TRF flag will also generate an SPIA interrupt signal, for more informaton refer to the Interrupt
section.
Rev. 1.00
99
�anꢀaꢁꢂ ꢃꢄꢅ ꢃ011
HOLTEK [ HOLTEK SEMICONDUCTOR INC ]
