Device

Physical

Virtual

latch1

0x01000000

0xEA000000

latch2

0x08000000

0xEC000000

modem

0x04000000

0xEB000000

The E3 uses 3 HC377 octal d-type flip-flops to create 1 8-bit and 1 16-bit latch. These are write-only.

latch1 (8 bit)

Bit

Function

0

Camera LED

1

Advert LED

2

Email LED

3

Handsfree LED

4

Voicemail LED

5

Voice LED

6

Connected to dockit port. Inverted and at 5v levels

7

Connected to dockit port. Inverted and at 5v levels

latch2 (16 bit)

Bit

Function

0

LCD VBLEN

1

LCD NDISP

2

NAND NCE

3

NAND NRE

4

NAND NWP

5

NAND NWE

6

NAND ALE

7

NAND CLE

8

Mailboard?

9

Unknown

10

Smartcard?

11

Smartcard?

12

Modem NRESET

13

Modem CODEC

14

Unknown

15

Unknown

There are also 16 bits of GPIO

Bit

Function

0

Mailboard? (inverted?)

1

Mailboard?

2

Unknown

3

dockit

4

Phone hook

5

Unknown

6

Smartcard?

7

Smartcard?

8

Unknown

9

Unknown

10

Unknown

11

Unknown

12

Unknown

13

Unknown

14

Unknown

15

Unknown