L99MH98 datasheet(104/147 Pages) STMICROELECTRONICS

104 / 147 page

Bit 7

Bit 6

Bit 5

Bit 4

Bit 3

Bit 2

Bit 1

Bit 0

HB_IDIAG5

[1]

HB_PWM5

[2]

HB_PWM5

[1]

HB_PWM5

[0]

HB_MODE5

[1]

HB_MODE5

[0]

HB_WHEEL5

[1]

HB_WHEEL5

[0]

HB5

diagnostic

current

HB5 PWM

mapping [2]

HB5 PWM

mapping [1]

HB5 PWM

mapping [0]

HB5 mode [1] HB5 mode [0]

HB5 free-

wheeling [1]

HB5 free-

wheeling [0]

Table 166. HB5_MODE_CONFIG (0x20) LSB description

Bit

Name

Description

HB_IDIAG5 [0]

HB5 diagnostic currents setting

00 = Pull-up and pull-down currents off

01 = Pull-up current off and pull-down current on

10 = Pull-up current on and pull-down current off

11 = Pull-up and pull-down currents off

HB_PWM5 [2]

PWM mapping on HB5

This 3 bits register is used to indicate which PWM signal is applied to the HS or LS of the HB5

000 = LS of HB mapped on PWM1

001 = LS of HB mapped on PWM2

010 = LS of HB mapped on PWM3

011 = HS of HB mapped on PWM1

100 = HS of HB mapped on PWM2

101 = HS of HB mapped on PWM3

110 = 111 = No mapped

HB_PWM5 [1]

HB_PWM5 [0]

HB_MODE5 [1]

HB5 functionality mode

00 = LS and HS of the HB5 are kept off

01 = LS of the HB5 is ON (static, no PWM), HS of the HB5 is OFF

10 = HS of the HB5 is ON (static, no PWM), LS of the HB5 is OFF

11 = LS or HS of the HB5 is ON according to the HB_PWM1 register

HB_MODE5 [0]

HB_WHEEL5 [1] HB5 free-wheeling mode

00 = 11 = No mapped

01 = Active free-wheeling on HS of the HB

10 = Active free-wheeling on LS of the HB

HB_WHEEL5 [0]

Table 167. HB5_DRIVER_CFG (0x21) MSB

Bit 14

Bit 13

Bit 12

Bit 11

Bit 10

Bit 9

Bit 8

0 (RO)

0 (RW)

RES

VSTEP2_CONF5

[1]

VSTEP2_CONF5

[0]

ISTEP3_CONF5

[3]

ISTEP3_CONF5

[2]

ISTEP3_CONF5

[1]

ISTEP3_CONF5

[0]

Reserved

HB5 Vstep1 and

Vstep2 conf [1]

HB5 Vstep1 and

Vstep2 conf [0]

HB5 Istep3 conf

[3]

HB5 Istep3 conf

[2]

HB5 Istep3 conf

[1]

HB5 Istep3 conf

[0]

Table 168. HB5_DRIVER_CFG (0x21) MSB description

Bit

Name

Description

RES

Reserved bit

VSTEP2_CONF5 [1]

Vstep1 and Vstep2 thresholds configuration of the HB5

L99MH98

SPI Registers

DS14611 - Rev 3

page 104/147

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