HT46RU25 Holtek Semiconductor Inc., HT46RU25 Datasheet - Page 29
HT46RU25
Manufacturer Part Number
HT46RU25
Description
Ht46ru25/ht46cu25 -- A/d Type 8-bit Mcu
Manufacturer
Holtek Semiconductor Inc.
Datasheet
1.HT46RU25.pdf
(63 pages)
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Part Number:
HT46RU25
Manufacturer:
HOLTEK/合泰
Quantity:
20 000
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Rev. 1.30
Bit No.
Bit No.
0~2
5~6
3~4
3
4
7
0
1
2
5
6
7
RXAK
HAAS
Label
Label
TXAK
SRW
HBB
HCF
HTX
HEN
Unused bit, read as 0
Enable/disable transmit acknowledge
(0=acknowledge; 1=don t acknowledge)
Defines the transmit/receive mode
(0=receive mode; 1=transmit)
Unused bit, read as 0
Enable/disable I
(0=disable; 1=enable)
RXAK is cleared to 0 when the master receives an 8-bit data and acknowledgment at the 9th
clock, RXAK is set to 1 means not acknowledged.
Unused bit, read as 0
SRW is set to 1 when the master wants to read data from the I
transmit data to the master. SRW is cleared to 0 when the master wants to write data to the
I
Unused bit, read as 0
HBB is set to 1 when I
not busy.
HAAS is set to 1 when the calling address has matched, and I
and HCF is set.
HCF is cleared to 0 when one data byte is being transferred, HCF is set to 1 indicating
8-bit data communication has been finished.
2
C Bus, so the slave must receive data from the master.
2
C Bus function
HCR (21H) Register
HSR (22H) Register
2
C Bus is busy and HBB is cleared to 0 means that the I
29
Function
Function
HT46RU25/HT46CU25
2
2
C Bus interrupt will occur
C Bus, so the slave must
March 9, 2007
2
C Bus is
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