Datasheet
Functional Description
MC13783 Technical Data, Rev. 3.5
18 Freescale Semiconductor
4.1.1.2 Register Set
The register set is given in Table 5.
4.1.1.3 Interface Requirements
4.1.1.3.1 SPI Interface Description
The operation of both SPI interfaces is equivalent. Therefore, all SPI bus names without prefix PRI or SEC
correspond to both the PRISPI and SECSPI interfaces.
The control bits are organized into 64 fields. Each of these 64 fields contains 32 bits. A maximum of 24
data bits is used per field. In addition, there is one “dead” bit between the data and address fields. The
remaining bits include 6 address bits to address the 64 data fields and one write enable bit to select whether
the SPI transaction is a read or a write.
For each SPI transfer, first a one is written to the read/write bit if this SPI transfer is to be a write. A zero
is written to the read/write bit if this is to be a read command only. If a zero is written, then any data sent
after the address bits are ignored and the internal contents of the field addressed do not change when the
32nd CLK is sent. Next the 6-bit address is written, MSB first. Finally, data bits are written, MSB first.
Once all the data bits are written then the data is transferred into the actual registers on the falling edge of
the 32nd CLK.
Table 5. Register Set
Register Register Register Register
0
Interrupt Status 0
16
Regen Assignment
32
Regulator Mode 0
48
Charger
1
Interrupt Mask 0
17
Control Spare
33
Regulator Mode 1
49
USB 0
2
Interrupt Sense 0
18
Memory A
34
Power Miscellaneous
50
Charger USB 1
3
Interrupt Status 1
19
Memory B
35
Power Spare
51
LED Control 0
4
Interrupt Mask 1
20
RTC Time
36
Audio Rx 0
52
LED Control 1
5
Interrupt Sense 1
21
RTC Alarm
37
Audio Rx 1
53
LED Control 2
6
Power Up Mode Sense
22
RTC Day
38
Audio Tx
54
LED Control 3
7
Identification
23
RTC Day Alarm
39
SSI Network
55
LED Control 4
8
Semaphore
24
Switchers 0
40
Audio Codec
56
LED Control 5
9
Arbitration Peripheral Audio
25
Switchers 1
41
Audio Stereo DAC
57
Spare
10
Arbitration Switchers
26
Switchers 2
42
Audio Spare
58
Trim 0
11
Arbitration Regulators 0
27
Switchers 3
43
ADC 0
59
Trim 1
12
Arbitration Regulators 1
28
Switchers 4
44
ADC 1
60
Test 0
13
Power Control 0
29
Switchers 5
45
ADC 2
61
Test 1
14
Power Control 1
30
Regulator Setting 0
46
ADC 3
62
Test 2
15
Power Control 2
31
Regulator Setting 1
47
ADC 4
63
Test 3