|
|
固件数据定义, ~1 s* p# s4 s
Bytes 0-3: PCI subsystem vendor and subsystem device ID (Thisiswhat allows the driver to detect the brand/model of the card -the main PCI vendor and device ID are fixed and identify the card as an ICE1724 device.)
# N3 W0 V; h2 q9 V/ w a$ P2 p9 r. n3 R5 A( t
Byte 4: Size of EEPROM data# P6 H* X v3 |% Z2 u: x3 H
4 J: Q" B' l: p* r" T+ gByte 5: EEPROM version (seems to be supposed to be1 for ICE1712 (Envy24) and 2 forICE1724 (Envy24HT), but seems like it's usually set to 1even on Envy24HT..)
6 X" ]4 Q& J3 b3 S
; |7 i& r2 E+ ^Byte 6: System configuration byte - gets written to the corresponding card register by the driver. Controls clock crystal configuration, MPU-401 MIDI UART, how many ADCs/DACs are connected.% }5 l# X& I1 w$ M' a2 ~0 H/ j
3 B4 z5 s, O% N$ ^" Z: JByte 7: ACLink configuration byte - gets written to the corresponding card register by the driver. Controls the connection to the AC97 codec (i.e. the VT1616 used for the front, rear, center/LFE outputs). n8 @+ o9 w+ k+ @
: A0 I9 `2 [7 }8 S fByte 8: I2S configuration byte - gets written to the corresponding card register by the driver. Controls the connection to the I2S codec (i.e. presumably the Wolfson codec for the high sample rate output).
5 M% L: j1 }' x$ f7 y5 A* c2 I* `6 u4 J
Byte 9: SPDIF configuration byte - gets written tothecorresponding card register by the driver. Controls the SPDIF transmitter.8 _" y- X5 ?. I/ e6 i, {$ a; K4 u
$ r5 x T( Z( K4 ]5 UByte 10: GPIO Direction
y7 T, Y6 C0 n1 D' d5 N; @8 o, X0 v( @
Byte 11: GPIO Direction 1
( C* T& `) z3 {9 D+ A7 \+ r0 P9 k% N6 e5 \( }5 C. C
Byte 12: GPIO Direction 22 M. y3 u& b% [7 }( r
% e7 C7 _6 z6 _0 R( U0 mByte 13: GPIO Mask" P! h1 ]( k5 D/ ~, Y+ g8 P
9 Z! o/ T4 ^* Z: ]. m2 cByte 14: GPIO Mask 1/ J7 D4 D w" z0 M# m. o
( i0 S; q9 w7 o( V) zByte 15: GPIO Mask 29 U k- y1 {3 j5 ]
1 O* h \: c5 G5 K& a5 ?
Byte 16: GPIO State
' {) T- l( c' U7 k& {9 J" g
# H7 [6 y! {; x7 vByte 17: GPIO State 1
8 a$ [0 m% V: W0 O. F
& y' b# @ w! w5 L7 Z( Q _0 JByte 18: GPIO State 25 e' ?! S7 T' m. n6 z: l
: v7 p3 X7 U' n( Q' ~3 ^; h1 ?:shifty: 希望广大高手,,继续补充 |
|