NCP4208
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5. The master sends the 7−bit slave address followed
by the read bit (high).
6. The slave asserts ACK on SDA.
7. The slave sends the byte count N.
8. The master asserts ACK on SDA.
9. The slave sends the first data byte.
10. The master asserts ACK on SDA.
11. The slave sends the remainder of the data byes, the
master asserts an ACK on SDA after each data byte.
12. After the last data byte the master asserts a No ACK
on SDA.
13. The master asserts a STOP condition on SDA.
Configuration Register 1 (0xD1)
Bit 3 BUS_TO_EN = 1; Bus timeout enabled.
Figure 20. Block Write to a Command Coder
SLAVE
ADDRESS
BYTE COUNT
= N
AWS
2465317
S
SLAVE
ADDRESS
AR
81211
DATA
BYTE N
PA
13
A
DATA
BYTE 1
A
...
109
I
2
C Timeout
The NCP4208 includes a I
2
C timeout feature. If there is
no I
2
C activity for 35 ms, the NCP4208 assumes that the
bus is locked and releases the bus. This prevents the
device from locking or holding the I
2
C expecting data.
The timeout feature can be disabled.
Table 8. VR11 and VR10.x VID CODES for the NCP4208
OUTPUT VID7 VID6 VID5 VID4 VID3 VID2 VID1 VID0
OFF 0 0 0 0 0 0 0 0
OFF 0 0 0 0 0 0 0 1
1.60000 0 0 0 0 0 0 1 0
1.59375 0 0 0 0 0 0 1 1
1.58750 0 0 0 0 0 1 0 0
1.58125 0 0 0 0 0 1 0 1
1.57500 0 0 0 0 0 1 1 0
1.56875 0 0 0 0 0 1 1 1
1.56250 0 0 0 0 1 0 0 0
1.55625 0 0 0 0 1 0 0 1
1.55000 0 0 0 0 1 0 1 0
1.54375 0 0 0 0 1 0 1 1
1.53750 0 0 0 0 1 1 0 0
1.53125 0 0 0 0 1 1 0 1
1.52500 0 0 0 0 1 1 1 0
1.51875 0 0 0 0 1 1 1 1
1.51250 0 0 0 1 0 0 0 0
1.50625 0 0 0 1 0 0 0 1
1.50000 0 0 0 1 0 0 1 0
1.49375 0 0 0 1 0 0 1 1
1.48750 0 0 0 1 0 1 0 0
1.48125 0 0 0 1 0 1 0 1
1.47500 0 0 0 1 0 1 1 0
1.46875 0 0 0 1 0 1 1 1
1.46250 0 0 0 1 1 0 0 0
1.45625 0 0 0 1 1 0 0 1
1.45000 0 0 0 1 1 0 1 0
1.44375 0 0 0 1 1 0 1 1
1.43750 0 0 0 1 1 1 0 0
1.43125 0 0 0 1 1 1 0 1
1.42500 0 0 0 1 1 1 1 0
1.41875 0 0 0 1 1 1 1 1
1.41250 0 0 1 0 0 0 0 0
1.40625 0 0 1 0 0 0 0 1
1.40000 0 0 1 0 0 0 1 0
