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 |