Differences between revisions 1 and 2
Revision 1 as of 2006-03-22 14:13:43
Size: 859
Comment: Initial import of MattC's info.
Revision 2 as of 2006-03-23 22:59:08
Size: 1497
Editor: 82-32-52-58
Comment:
Deletions are marked like this. Additions are marked like this.
Line 6: Line 6:
latch1 (8 bit) 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)'''
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||6 ||Unknown ||
||7 ||Unknown ||
||6 ||Connected to dockit port. Inverted and at 5v levels||
||7 ||Connected to dockit port. Inverted and at 5v levels||
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latch2 (16 bit) '''latch2 (16 bit)'''
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||8 ||Unknown || ||8 ||Mailboard? ||
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||10 ||Unknown ||
||11 ||Unknown ||
||10 ||Smartcard? ||
||11 ||Smartcard? ||
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'''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 ||

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

TheEarthWiki: E3_IO_Ports (last edited 2008-02-19 15:39:12 by localhost)