MPC8540 datasheet(1063/1302 Pages) FREESCALE

1063 / 1302 page

Memory Map/Register Definition

MPC8540 PowerQUICC III Integrated Host Processor Reference Manual, Rev. 1

Freescale Semiconductor

18-15

18.4.1.12 Power Management Control and Status Register (POWMGTCSR)

Shown in Figure 18-12, POWMGTCSR contains bits for placing the MPC8540 into low power

states and for controlling when it wakes up. It also contains power management status bits. See

Section 18.5.1.8.2, “Interrupts and Power Management Controlled by POWMGTCSR,” for more

information.

Table 18-15 describes the bit settings of POWMGTCSR.

TSEC2 Three-speed Ethernet controller 2 disable

0 TSEC2 enabled

1 TSEC2 disabled. RxD and TxD pins may be used for general-purpose I/O

FEC

Fast Ethernet controller (10/100 maintenance port) disable

0 FEC enabled

1 FEC disabled

27–28

—

Reserved

I2C

I2C controller disabled

0I2C controller enabled

1I2C controller disabled

DUART Dual UART controller disabled

0 DUART enabled

1 DUART disabled

—

Reserved

IRQ_MSK CI_MSK

0 000 000 00 0

DOZ

SLP

0 0 0 0 0 0 0 0 0 0 0 0 0 DOZING NAPPING SLPING 0

Reset

0000_0000_0000_0000_0000_0000_0000_0000

Offset

0xE_0080

Figure 18-12. Power Management Control and Status Register (POWMGTCSR)

Table 18-15. POWMGTCSR Field Descriptions

Bits

Name

Description

IRQ_MSK Interrupt input mask

0 Interrupts cause the device to wake up from a low-power state.

1 Interrupts are masked as a wake-up condition. The device remains in a low-power state despite

the presence of an interrupt request.

CI_MSK

Critical interrupt input mask

0 Critical interrupts cause the device to wake up from a low power state.

1 Critical interrupts are masked as a wake-up condition. The device remains in a low-power state

despite the presence of a critical interrupt.

Table 18-14. DEVDISR Field Descriptions (continued)

Bits

Name

Description

MPC8540 Datasheet(PDF) 1063 Page - Freescale Semiconductor, Inc

MPC8540 Datasheet(HTML) 1063 Page - Freescale Semiconductor, Inc

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 ...More

Datasheet Download

Link URL