ISL6398 Datasheet, PDF (40/57 Pages) Intersil Corporation – Programmable soft-start rate and DVID rate

ISL6398
COMMAND
CODE
D7h[13:0]
ACCESS
BLOCK
R/W
D8h[6:0] R/W
D9h[13:0] BLOCK
R/W
DAh[7:0]
DBh[7:0]
DCh[4:0]
DDh[7:0]
DEh[2:0]
R/W
R/W
R
R
R/W
TABLE 14. SMBus, PMBus, AND I²C WRITE AND READ REGISTERS
WRITE
PROTECT
LEVEL
DEFAULT
COMMAND NAME
DESCRIPTION
10h NVM_BANK
DVID_UP_OS_GAIN_SLP
3Fh = 315mV
BIT[8:6] - DVID_UP_GAIN
00 = deltavid*0
01h = deltavid/32
02h = deltavid/16
...
07h = deltavid * 7/32
BIT[13:9] - DVID_UP_SLOPE
00h = every 4 clocks(125ns per step - 40mV/µs)
01h = every 8 clocks(250ns per step - 20mV/µs)
...
1Fh = every 128 clocks (4µs per step - 1.25mV/µs)
10h NVM_BANK
SET_OV_VRAMP
Bit[2:0] - OVP above VID during normal operation:
0h = 135mV, 1h = 177mV, 2h = 218V, 3h = 260mV, 4h = 342mV,
5h = 425mV, 6h = 460mV, 7h = 549mV; OVP = VID+Bit[2:0] with
hysteresis of 83mV. OVP_WARNING = VID+Bit[2:0]-80mV with
hysteresis of 42mV (see Electrical Specification on Page 10 for
more details). OVP and OVP Warning can be disabled via DFh.
Bit [4:3], soft-start OVP (with 110mV Hysteresis):
0h = 1.58V, 1h = 1.86V; 2h = 2.29V; 3h = 3.32V
Bit[6:5] - VRAMP
0h = 0.75V; 1h = 1.0V; 2h = 1.2V; 3h = 1.5V
10h NVM_BANK
DVID_DW_OS_GAIN_SLP
BIT[5:0] - DVID_DW_OFFSET
00h = 0mV
01h = 5mV
02h = 10mV
…
3Fh = 315mV
BIT[8:6] - DVID_DW_GAIN
00 = deltavid*0
01h = deltavid/32
02h = deltavid/16
...
07h = deltavid * 7/32
BIT[13:9] - DVID_DW_SLOPE
00h = every 4 clocks(125ns per step - 40mV/µs)
01h = every 8 clocks(250ns per step - 20mV/µs)
...
1Fh = every 128 clocks(4us per step - 1.25mV/µs)
20h
00h
SET_VID
PMBus VID Code (See Table 4)
20h NVM_BANK
SET_OFFSET
PMBus OFFSET Code (See Table 4)
N/A
PIN
Config Registers
Reference to Resistor Reader. DC
N/A
PIN
Config Registers
Reference to Resistor Reader. DD
20h
PIN
NVM_BANK
Bit[2:0]:
0h = USER_NVM#0
1h = USER_NVM#1
2h = USER_NVM#2
3h = USER_NVM#3
4h = USER_NVM#4
5h = USER_NVM#5
6h = USER_NVM#6 (Copy of NVM#0, otherwise, overwritten)
7h = USER_NVM#7 (Copy of NVM#1, otherwise, overwritten)
Select which memory bank to store or load the configurations
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FN8575.1
August 13, 2015