
ACE9050
12
INTERNAL REGISTERS AND RESET STATUS
ACE9050 REGISTERS
Name
R/W
R
R/W
R/W
R
R
R/W
R/W
R/W
R/W
R
R
R
R/W
R/W
W
W
W
W
W
R/W
R/W
R/W
R
W
W
W
W
W
W
W
W
W
W
W
W
W
W
W
Address
22-23
24-25
26-27
28-29
2C-2D
2E-2F
30-31
32-33
34-35
36-37
3A-3B
3C-3D
3E-3F
40-41
42-43
44
45
50
51
52
53
54
55
56
57
57
5B
5C
60-61
62-63
64-65
66
67
68-69
6A-6B
6C-6D
70-71
72-73
74-75
76-77
Description
D7-0 reset condition
Notes
1, 6
2
3, 7
6
4, 6
4, 6
4, 6
7
7
5, 7
7
7
7
7
7
Table 8 ACE9050 ports
IN_PORT1
OUT_PORT2
PORT3
BARPORT
IRQPRT2
IRQPRT6
MODPRT0
MODPRT1
MODPRT2
KEYP
LSICOM4
LSICOM5
LSICOM6
PORT4
PORT5
BANK_SEL
RESERVED
BARHIGH
BARLOW
BARENABLE
BRG
I2C_ADDR
I2C_DATA
I2C_CNTR
I2C_STAT
I2C_CCR
DAC1
DAC2
LSICOM0
LSICOM1
LSICOM2
LSICOM3
STR_WIDTH
KPOT
REWD
RESAT0
IRQPRT0
IRQPRT1
IRQPRT4
IRQPRT5
External IP Port
External OP Port
Internal Port
Test-Do Not Access
Read Int Interrupts
Read Ext Interrupts
Modem
Modem
Modem
Key Pad IP and Chip ID
ACE Interface RX1
ACE Interface RX2
ACE Interface RX3
Internal Port
Internal Port
Bank Select
Do Not Access
BAR On
BAR Off
BAR OE
UART Baud select
I
2
C
I
2
C
I
2
C
I
2
C
I
2
C
PWM 1 data
PWM 2 Data
ACE Interface TX1
ACE Interface TX2
ACE Interface TX3
ACE Interface Control
Latch 3 Width
O/P type for KPO
Reset Watchdog
Reset Time Out
Reset Int Interrupts
Mask Int Interrupts
Reset Ext Interrupts
Mask Ext Interrupts
EE
0
EEE
00
00000000
00000000
111
X
111
XXXX
1111
00000000
00000000
00000000
0010
EEEE
EEEEEEEE
EEEEEEEE
EEEEEEEE
00000010
00000011
XXX
00000
00000000
00000000
XXXXXX
0
XXXXX
000
00000000
00000000
00000000
11111000
00000000
00000000
00000000
00000000
00000000
00000000
00000000
00000000
XXX
11111
XXXXXXXX
XXXXXXXX
00000000 (Reset)
00000000 (Masked)
XXXX
0000
XXXX
0000
NOTES:
1. Bit 6 is set (1) in SERV mode. Bits 1 and 0 are set (1) if the corresponding interrupt is enabled (inverse
of IRQPRT6).
2. Bit 4 (UPOFFN) is set (1) in SERV mode, but reset (0) in Normal mode.
3. Bit 4 is not used and should be treated as undetermined.
4. The LSICOM4, 5 and 6 ports values will depend on the DTFG input.
5. In SERV mode the Boot block will set up BRG to 00000100 (9600 Baud).
6. E = Depends on external input.
7. X = Not used or undetermined.