Datasheet

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TPS2384
SLUS634D – NOVEMBER 2004 – REVISED MARCH 2007
Table 2. Register/Port Addressing Map
BIT FUNCTION STATE PRESET
STATE
D7 Unused 0 0
D6 Register select MSB 0000 = Common Read — Port fault status, chip ID and rev.
0001 = Common Control Write — Software reset, ports disable and AC Disc.
D5 Register select Bit 2
0010 = Port Control Write 1 — Function calls; misc. fault disables
D4 Register select Bit 1
0011 = Port Control Write 2 — Port enable; A/D control
0100 = Port Status Read 1 — Fault status; device Class info.
0101 = Port Status Read 2 — Function and other status
0110 = Discovery Current – Lower Bits — A/D resistance results
0111 = Discovery Current – Upper Bits — A/D resistance results
0000
1000 = Voltage – Lower Bits – A/D voltage results
1001 = Voltage – Upper Bits — A/D voltage results
D3 Register select LSB
1010 = Current – Lower Bits — A/D current results
1011 = Current – Upper Bits — A/D current results
1100 = Temperature – Lower Bits — A/D temperature results
1101 = Temperature – Upper Bits — A/D temperature results
1110 = unused
1111 = Common Write – Test mode selections — timer disables, discovery control, etc.
D2 Unused 0 0
D1 Port address MSB 00 = port 1
01 = port 2
00
10 = port 3
D0 Port address LSB
11 = port 4
Table 3. Common Read, Register Select = 0000
BIT FUNCTION STATE PRESET
STATE
Port 4 general 0 = no fault
D7 0
Fault status 1 = port fault
(1) (2)
Port 3 general 0 = no fault
D6 0
Fault status 1 = port fault
(1) (2)
Port 2 general 0 = no fault
D5 0
Fault status 1 = port fault
(1) (2)
Port 1 general 0 = no fault
D4 0
Fault status 1 = port fault
(1) (2)
D3 00 = rev --
01 = rev 1
Chip rev Varies
10 = rev 2
D2
11 = rev 3
D1 00 = TPS23841
01= future use
Chip ID 10
10 = TPS2384
D0
11 = reserved
(1) PMM faults cleared by Disable function.
(2) AM faults cleared by TED timer.
31
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