Microchip Technology DT100108, Руководство пользователя

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MIC33M656
EVALUATION BOARD
USER’S GUIDE

2019 Microchip Technology Inc. DS50002914A-page 37
Appendix C. MIC33M656 Internal Registers
C.1 REGISTER MAP AND I
2
C PROGRAMMABILITY
The MIC33M656 internal registers are summarized in
Table C-1
.
TABLE C-1: MIC33M656 REGISTER MAP
Address Register Name
0x00 Control Register (CTRL1)
TON[1:0] ILIM[1:0] EN_DELAY[1:0] EN_INT EN_CON
0x01 Output Control Register (CTRL2)
DIS_100PCT FPWM OT_LATCH PULL_DN SLEW_RATE[3:0]
0x02 Output Voltage Control Register (VOUT)
VO[7:0]
0x03 STATUS and Fault Register (FAULT)
OT_WARN EN_STAT BOOT_ERR SSD HICCUP OT LATCH_OFF PG
REGISTER C-1: CTRL1: CONTROL REGISTER (ADDRESS 0x00)
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
TON[1:0] ILIM[1:0] EN_DELAY[1:0] EN_INT EN_CON
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 7-6 TON[1:0]: On Time
00
= Low frequency
01
= Medium frequency
10
= High frequency
11
= Very fast frequency
bit 5-4 ILIM[1:0]: High-Side Peak Current Limit
00
= 4.5A
01
= 6A
10
= 8.5A
11
= 10.0A
bit 3-2 EN_DELAY[1:0]: Enable Delay
00
= 250 µs
01
= 1 ms
10
= 2 ms
11
= 3 ms
bit 1 EN_INT: Enable Bit Register Control
0
= Register controlled
1
= Enable pin controlled
bit 0 EN_CON: Enable Control
0
= Off
1
= On