VCT 38xxA
ADVANCE INFORMATION
Table 5–11: I2C Bit Rates
196: 1FD6
197: I2CRD
198: I2C Read Data Register
bit
7
6
5
4
0
3
2
1
0
0
SPEED
Bit Rate
19.776 Kbit/s
r
I2C Data
0
reset
0
0
0
0
0
0
1
2.531 Mbit/s
1.266 Mbit/s
844 Kbit/s
633 Kbit/s
...
Reading this register returns the content of the Read
FIFO.
2
3
199: 1FD7
200: I2CRS
201: I2C Read Status Register
4
bit
7
x
0
6
5
AACK
0
4
DACK
0
3
BUSY
0
2
WFH
0
1
RFE
0
0
x
0
r
OACK
...
127
reset
0
19.931 Kbit/s
OACK
“OR”ed Acknowledge
r:
AACK || DACK
SIPS
Special Input Port Select
AACK
r:
Address Acknowledge
Acknowledge state of address field
w1:
w0:
use port pair P36, P37 for terminal 2
use port pair P22, P23 for terminal 2
DACK
Data Acknowledge
r:
Acknowledge state of data field
BUSY
r1:
r0:
Busy
I2C Master Interface is busy
I2C Master Interface is not busy
WFH
r1:
r0:
Write-FIFO Half Full
Write-FIFO is filled with 3 Bytes
Write-FIFO is not half full
RFE
r1:
r0:
Read-FIFO Empty
Read-FIFO is empty
Read-FIFO is not empty
202: 1FDB
203: I2CM
204: I2C Mode Register
bit
7
TERM
1
6
0
5
4
0
3
SPEED
0
2
1
0
0
w
reset
0
0
1
TERM
w1:
Terminal Select
Terminal 1
w0:
Terminal 2
SPEED
w:
Speed Select
I2C Bit Rate = fOSC / (4 * SPEED)
205: 1E73
206: I2CPS
207: I2C Port Select Register
bit
w
7
6
5
4
0
3
2
1
0
SIPS
0
reset
0
0
0
0
0
0
112
Micronas
MICRONAS [ MICRONAS ]
