ISL6398 Datasheet, PDF (38/57 Pages) Intersil Corporation – Programmable soft-start rate and DVID rate

ISL6398
COMMAND
CODE
01h[2:0]
ACCESS
R/W
10h[7:5] R/W
15h
SEND
16h
SEND
24h[8:0] R/W
99[15:0]
9A[15:0]
9B[15:0]
9D[23:0]
AD[15:0]
BLOCK
R/W
BLOCK
R/W
BLOCK
R/W
BLOCK
R/W
BLOCK R
AE[15:0] BLOCK R
D0h[2:0] R/W
TABLE 14. SMBus, PMBus, AND I²C WRITE AND READ REGISTERS
WRITE
PROTECT
LEVEL
DEFAULT
COMMAND NAME
DESCRIPTION
40h
EN pin
OPERATION (or ENABLE)
Bit[7]: 0 = OFF (0-F); 1 = ON (80-8Fh)
Bit[6:4] = 0;
Bit[3:0] = Don’t care
NOT
80h
WRITE_PROTECT_ISL
80h = Disable all standard writes (including send bytes) except
for WRITE_PROTECT_ISL command.
40h = Disable all standard writes (including send bytes), all
compensation registers and some Intersil defined commands,
BUT not WRITE_PROTECT, OPERATION, CLEAR_FAULT, and some
Intersil defined commands.
20h = Disable all standard writes, all compensation registers
and some Intersil defined commands, BUT NOT
WRITE_PROTECT, OPERATION, CLEAR_FAULT and some Intersil
defined commands: LOCK_VID_OFFSET, SET_VID, SET_OFFSET.
10h = Disable all compensation registers and some Intersil
defined commands, BUT not WRITE_PROTECT, OPERATION,
CLEAR_FAULT and some Intersil defined commands (at WRITE
PROTECTION LEVEL OF 20h): LOCK_VID_OFFSET, Set_VID,
Set_OFFSET, Configurations (UVP, OVP, OCP, CFP, IMAX, TMAX,
AUTO, NPHASE, BAL_XX, FREQ, BOOT_VOLTAGE, etc).
00h = Enable all write commands.
Reject all command code except for 80h, 40h, 20h, 10h, 0h
Not support PAGE and ON_OFF_CONFIG; Equivalent
VOUT_COMAND is Set_VID, Set_OFFSET, LOCK_VID_OFFSET.
“WRITE PROTECT LEVEL” = ANYTHING SPECIFIED IN THIS LEVEL
OR BELOW IS ALLOWED TO BE WRITTEN.
00h
N/A
STORE_USER_ALL
Store user configuration (operating memory) into selected
USER_NVM#. The device will declare busy at the assertion of this
command, a new command addressed to this device should be
sent 300ms afterward.
00h
N/A
RESTORE_USER_ALL
Restore user configuration (USER_NVM#) into operating
memory. The device will declare busy at the assertion of this
command, a new command addressed to this device should be
sent 6ms afterward.
00h NVM_BANK
VOUT_MAX
Set maximum output voltage that VR can command
(VOUT_MAX = VID+OFFSET > BOOT_Voltage).
5mV Mode: Up to 2.155 (H Byte: 01h; L Byte 7Eh, see Table 18);
10mV Mode: Up to 3.11V (High Byte: 01h; Low Byte 06h).
00h
MFR_ID
User stores ID.
00h
MFR_MODEL
User stores model number.
00h
MFR_REVISION
User stores board and/or configuration revision number.
00h
MFR_DATE
User stores date.
N/A
IC_DEVICE_ID
Intersil Device ID: product ID (update byte, hardcoded) + ISL
configuration revision (lower byte).
N/A
IC_DEVICE_REV
Intersil Device Revision: Silicon revision (upper byte, hardcoded)
+ ISL configuration revision (lower byte).
00h N_PHASE By OPERATE_PHASE_NUMBER 0h = 7h = N_MAX; 1h=1 Phase;2h = 2 Phases; 3h = 3 Phases;
Pin
4h = 4 Phases; 5h = 5 Phases; 6h = 6 Phases. N_MAX set by PWMx
hard wired; for instance if PWM6 = V_CC, N_MAX = 5 Phases. D0
should NOT be written until 50ms after soft-start and re-written
after DVID. When AUTO (R to GND, not shorted to GND) function
is enabled, D0h cannot use to program phase number but it
reports the operating phase number.
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FN8575.1
August 13, 2015