ST18-AU1 STMICROELECTRONICS [STMicroelectronics], ST18-AU1 Datasheet - Page 49

• Manufacturer Part Number: ST18-AU1
• Description: SIX-CHANNEL DOLBY AC3/MPEG2 AUDIO DECODER
• Manufacturer: STMICROELECTRONICS [STMicroelectronics]

XER0/1: X-memory space control registers
After reset, XER0/1 default values are 0x83EF/0x83FF
YER0/1: Y-memory space control registers
After reset, YER0/1 default values are 0x83EF/0x83FF
IER0/1: Instruction memory control registers
After reset, IER0/1 default values are 0x83EF/0x83FF or 0xC3EF/0xC3FF (the EN_I value
depends on the IDT_EN input value).
Bit
W3:0
XA15:10
EN_X
IM
-
Bit
W3:0
YA15:10
EN_Y
IM
-
15
IM
15
IM
15
IM
EN_X
EN_Y
EN_I
14
14
14
13
13
13
Function
Wait state count (1 to 16) for off-chip access (X-memory space)
X-memory space map for boundary on-chip or off-chip
Enable for X-space data exchanges
Intel/Motorola
RESERVED. R
Function
Wait state count (1 to 16) for off-chip access (Y-memory space)
Y-memory space map for boundary on-chip or off-chip
Enable for Y-space data exchanges
Intel/Motorola
RESERVED. R
-
-
-
0: Motorola type for memories
1: Intel type for memories (default)
0: Motorola type for memories
1: Intel type for memories (default)
12
12
12
-
-
-
11
11
-
-
11
-
ead 0, write don’t care.
ead 0, write don’t care.
10
10
-
-
10
-
XA15 XA14 XA13 XA12 XA11 XA10 W3
YA15 YA14 YA13 YA12 YA11 YA10 W3
9
9
IA15 IA14 IA13 IA12 IA11 IA10
9
8
8
8
7
7
7
6
6
6
5
5
5
4
4
4
W3
3
3
3
W2
W2
W2
2
2
2
ST18-AU1
W1
W1
W1
1
1
1
W0
W0
W0
49/87
0
0
0