UM10503
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© NXP B.V. 2012. All rights reserved.
User manual
Rev. 1.3 — 6 July 2012
823 of 1269
NXP Semiconductors
UM10503
Chapter 28: LPC43xx State Configurable Timer (SCT)
28.6.10 SCT match/capture registers mode register
If UNIFY = 1 in the CONFIG register, only the _L bits of this register are used. The L bits
control whether each set of match/capture registers operates as unified 32-bit
capture/match registers.
If UNIFY = 0 in the CONFIG register, this register can be written to as two registers
REGMODE_L (address 0x4000 404C) and REGMODE_H (address 0x4000 404E). Both
the L and H registers can be read or written individually or in a single 32-bit read or write
operation.The _L bits/registers control the L match/capture registers, and the _H
bits/registers control the H match/capture registers.
The SCT contains 16 Match/Capture register pairs. The Register Mode register selects
whether each register pair acts as a Match register (see
) or as a Capture
register (see
). Each Match/Capture register has an accompanying
register which serves as a Reload register when the register is used as a Match register
(
) or as a Capture-Control register when the register is used as a capture
register (
). REGMODE_H is used only when the UNIFY bit is 0.
An alternate addressing mode is available for all of the Match/Capture and
Reload/Capture-Control registers, for DMA access to halfword registers when UNIFY=0.
This mode is described in
Table 655. SCT input register (INPUT - address 0x4000 0048) bit description
Bit
Symbol
Description
Reset
value
0
AIN0
Real-time status of input 0.
pin
1
AIN1
Real-time status of input 1.
pin
2
AIN2
Real-time status of input 2.
pin
3
AIN3
Real-time status of input 3.
pin
4
AIN4
Real-time status of input 4.
pin
5
AIN5
Real-time status of input 5.
pin
6
AIN6
Real-time status of input 6.
pin
7
AIN7
Real-time status of input 7.
pin
15:8
-
Reserved.
-
16
SIN0
Input 0 state synchronized to the SCT clock.
-
17
SIN1
Input 1 state synchronized to the SCT clock.
-
18
SIN2
Input 2 state synchronized to the SCT clock.
-
19
SIN3
Input 3 state synchronized to the SCT clock.
-
20
SIN4
Input 4 state synchronized to the SCT clock.
-
21
SIN5
Input 5 state synchronized to the SCT clock.
-
22
SIN6
Input 6 state synchronized to the SCT clock.
-
23
SIN7
Input 7 state synchronized to the SCT clock.
-
31:24
-
Reserved
-