Fig. 10-1

Development Mezzanine Card:Debug/Status LEDs

JP3: This is a user-defined jumper.

JP4: JP4 is the MV64460 serial ROM configuration jumper. If JP4 is installed, the MV64460 will not try to configure from the serial ROM.

Jumper Setting Register

These read-only bits may be read by software at location F820,6000 to determine the cur- rent DMC jumper (JP1) settings.

Register 10-1:DMC Jumper Setting Register at 0xf820,6000

7

6

5

4

3

2

1

0

Reserved

JP4

JP3

JP2

JP1

JP4: Jumper 4 on DMC (MV64460 serial ROM configuration):

1Installed (MV64460 will not configure from ROM)

0Not installed (MV64460 will configure from ROM)

JP3: Jumper 3 on DMC (user defined): 1 Installed

0 Not installed

JP2: Jumper 2 on DMC (BOOT):

1 Installed (Boot from DMC ROM socket)

0 Not installed (Boot from PmPPC7448 Flash-default)

JP1: Jumper 1 on DMC (ENET) is not used for the PmPPC7448.

DEBUG/STATUS LEDS

The DMC has four green, light-emitting diodes (LEDs) for software development; see for LED locations. These LEDs are controlled through the DMC LED register.

Register 10-2:DMC LED Register at 0xf820,d000

7

6

5

4

3

2

1

0

Reserved

LED4

LED3

LED2

LED1

LED4: Asserting (1) this bit lights the DMC CR4.

LED3: Asserting (1) this bit lights the DMC CR3.

LED2: Asserting (1) this bit lights the DMC CR2.

LED1: Asserting (1) this bit lights the DMC CR1.

10-10

PmPPC7448 User’s Manual

10006757-02

Page 98
Image 98
Emerson PMPPC7448 user manual Development Mezzanine Card Debug/Status LEDs, Jumper Setting Register, DEBUG/STATUS Leds