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NXP Semiconductors
PT2001SWUG
PT2001 programming guide and instruction set
PT2001SWUG
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© NXP B.V. 2019. All rights reserved.
User guide
Rev. 3.0 — 29 April 2019
106 / 153
slfbk
Description:
Selects the feedback reference for both V
DS
of the high-side predrivers 2 and 4. In
addition, this instruction enables the automatic diagnosis.
This operation is successful only if the microcore has the right to drive the related
outputs. The drive right is granted by setting the related bits in the Out_acc_ucX_chY
(184h, 185h, 186h, 187h) configuration registers.
The reset of Ref value is boost.
Assembler syntax:
slfbk Ref Diag;
Operands:
•
Ref – Operand defines the feedback reference for both V
DS
of the high-side predrivers
2 and 4.
Operand label
Operand description
boost
Both V
DS
of the high-side predrivers 2 and 4 are referred to boost voltage
(VBOOST pin)
bat
Both V
DS
of the high-side predrivers 2 and 4 are referred to bat voltage
(VBATT pin)
•
Diag – Operand defines the diagnosis status for both V
DS
s of the high-side predrivers 2
and 4.
Operand label
Operand description
keep
No changes, maintains the previous setting
off
Automatic diagnosis disabled
on
Automatic diagnosis enabled
Table 94. slfbk instruction format
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
0
0
1
1
0
1
1
0
0
1
0
0
0
Ref
Diag