NXP Semiconductors MKW01Z128, Reference Manual

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As a result, undecorated GPIO references and decorated AND, OR, XOR, LAC1 and
LAS1 operations can use the standard 0x400F_F000 base address, while decorated BFI
and UBFX operations must use the alternate 0x4000_F000 base address. Another
implementation can simply use 0x400F_F000 as the base address for all undecorated
GPIO accesses and 0x4000_F000 as the base address for all decorated accesses. Both
implementations are supported by the hardware.
Table 13-8. Decorated peripheral and GPIO address details
Peripheral address space Description
0x4000_0000–0x4007_FFFF Undecorated (normal) peripheral accesses
0x4008_0000–0x400F_EFFF Illegal addresses; attempted references are aborted and error terminated
0x400F_F000–0x400F_FFFF Undecorated (normal) GPIO accesses using standard address
0x4010_0000–0x43FF_FFFF Illegal addresses; attempted references are aborted and error terminated
0x4400_0000–0x4FFF_FFFF Decorated AND, OR, XOR, LAC1, LAS1 references to peripherals and GPIO based at
either 0x4000_F000 or 0x400F_F000
0x5000_0000–0x5FFF_FFFF Decorated BFI, UBFX references to peripherals and GPIO only based at 0x4000_F000
13.4 Application information
In this section, GNU assembler macros with C expression operands are presented as
examples of the required instructions to perform decorated operations.
This section specifically presents a partial bme.h file defining the assembly language
expressions for decorated logical stores: AND, OR, and XOR. Comparable functions for
BFI and the decorated loads are more complex and available in the complete BME header
file.
These macros use the same function names presented in Functional description .
#define IOANDW(ADDR,WDATA) \
__asm("ldr r3, =(1<<26);" \
"orr r3, %[addr];" \
"mov r2, %[wdata];" \
"str r2, [r3];" \
:: [addr] "r" (ADDR), [wdata] "r" (WDATA) : "r2", "r3");
#define IOANDH(ADDR,WDATA) \
__asm("ldr r3, =(1<<26);" \
"orr r3, %[addr];" \
"mov r2, %[wdata];" \
"strh r2, [r3];" \
:: [addr] "r" (ADDR), [wdata] "r" (WDATA) : "r2", "r3");
#define IOANDB(ADDR,WDATA) \
__asm("ldr r3, =(1<<26);" \
"orr r3, %[addr];" \
"mov r2, %[wdata];" \
"strb r2, [r3];" \
:: [addr] "r" (ADDR), [wdata] "r" (WDATA) : "r2", "r3");
Application information
MKW01Z128 MCU Reference Manual, Rev. 3, 04/2016
246 Freescale Semiconductor, Inc.