33389 datasheet(36/49 Pages) FREESCALE

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Analog Integrated Circuit Device Data

Freescale Semiconductor

33389

FUNCTIONAL DEVICE OPERATION

LOGIC COMMANDS AND REGISTERS

This register is used to select the window watchdog time period. Open window of the selected period is only the second half

of the selected period.

This register is used to monitor the ground shift of the vehicle network.

Table 23. CYTCR Bit Definition

CYTCR2

CYTCR1

CYTCR0

Comments

t(ms) Typical

Timer ON, t1 (Default)

Timer ON, t2

Timer ON, t3

128

Timer ON, t4

256

Timer ON, t5

512

Timer ON, t6

1024

Timer ON, t7

2048

Timer ON, t8

8192

Note: A reset of the register occurs when RST = Low.

Table 24. Software Watchdog Control Register (SWCR)

Address

Bit 7

Bit 6

Bit 5

Bit 4

Bit 3

Bit 2

Bit 1

Bit 0

SWCR

$009

SWCR2

SWCR1

SWCR0

RESET

—

Table 25. SWCR Bit Definition

SWCR2

SWCR1

SWCR0

Comments

t(ms) Typical

Timer ON, t1 (Default)

Timer ON, t2

Timer ON, t3

Timer ON, t4

Timer ON, t5

Timer ON, t6

Timer ON, t7

100

Timer ON, t8

200

Note: The software watchdog is only running in Normal and Stand-by modes. A reset of this register occurs when RST = Low.

Table 26. Ground Shift Level Register (GSLR)

Address

Bit 7

Bit 6

Bit 5

Bit 4

Bit 3

Bit 2

Bit 1

Bit 0

GSLR

$00A

TXDOM

SHIFT

GSLR1

GSLR0

RESET

—

33389 Datasheet(PDF) 36 Page - Freescale Semiconductor, Inc

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