OM13013,598 NXP Semiconductors, OM13013,598 Datasheet - Page 353

• Manufacturer Part Number: OM13013,598
• Description: BOARD DEMO IAR LPC1227 JLINKLITE
• Manufacturer: NXP Semiconductors
• Series: -r

Specifications of OM13013,598

• Design Resources: LPC122x-SK Brd Schematic
• Processor To Be Evaluated: LPC1227
• Processor Series: LPC122x
• Data Bus Width: 32 bit
• Interface Type: UART, SSP, SPI, I2C
• Cpu Core: ARM Cortex-M0
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Operating Supply Voltage: 3 V to 3.6 V
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: 568-6885

NXP Semiconductors
23.4 Examples
UM10441
User manual
23.4.1 Initialization
23.4.2 Signed division
23.4.3 Unsigned division with remainder
The example C-code listing below shows how to initialize the API’s ROM table pointer.
/* Declare table pointer */
LPC_ROM_DIV_STRUCT const* pDivROM;
/* Assign pointer to table */
pDivROM = *((LPC_ROM_DIV_STRUCT**)LPC_122x_DIVROM_LOC);
The example C-code listing below shows how to perform a signed integer division via the
ROM API.
/* Divide (-99) by (+6) */
int32_t result;
result = pDivROM->sidiv(-99, 6);
/* result now containts (-16) */
The example C-code listing below shows how to perform an unsigned integer division with
remainder via the ROM API.
/* Modulus Divide (+99) by (+4) */
uidiv_return result;
result = pDivROM-> uidivmod (-99, 6);
/* result.quot containts (+24) */
/* result.rem containts (+3) */
All information provided in this document is subject to legal disclaimers.
Rev. 1 — 15 February 2011
Chapter 23: LPC122x Integer division routines
UM10441
© NXP B.V. 2011. All rights reserved.
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