ht82a836r Holtek Semiconductor Inc., ht82a836r Datasheet - Page 49

• Manufacturer Part Number: ht82a836r
• Description: Usb Audio Mcu
• Manufacturer: Holtek Semiconductor Inc.

Mode Control Register
The MODE_CTRL register is used to control DAC and ADC operation mode and SPI function.
Note that the WCOL and CSEN bits are in the SBCR register.
SPI usage example:
SPI_Test:
set
if POLLING_MODE
;WRITE INTO WRITE ENABLE INSTRUCTION
$0:
else
;WRITE INTO WRITE ENABLE INSTRUCTION
$0:
endif
Rev. 1.00
clr
SIO_CSEN
clr
;Master Mode, SCLK=f
clr
clr
;--------------
clr
clr
clr
set
set
set
clr
MOV
MOV
snz
jmp
clr
set
MOV
MOV
snz
jmp
clr
UCC.@UCC_SYSCLK
SIO_CPOL
CKS
TRF
TRF_INT
MLS
CSEN
SBEN
ESII
A,OP_WREN
SBDR,A
TRF
$0
TRF
ESII
A,OP_WREN
SBDR,A
TRF_INT
$0
TRF_INT
M1
M0
Mode Control Register - MODE_CTRL
SIO
;12MHz SYSCLK
;SPI Chip Select Function Enable
;falling edge change data
;f
;clear TRF flag
;clear Interrupt SPI flag
;MSB shift first
;Chip Select Enable
;SPI Enable, SCS will go low
;SPI Interrupt Disable
;SPI Interrupt Enable
;set at SPI Interrupt
SIO
=f
49
SYS
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HT82A836R
March 20, 2008