P89LPC9408FBD,557 NXP Semiconductors, P89LPC9408FBD,557 Datasheet - Page 30

• Manufacturer Part Number: P89LPC9408FBD,557
• Description: IC 80C51 MCU FLASH 8K 64-LQFP
• Manufacturer: NXP Semiconductors
• Series: LPC900r

Specifications of P89LPC9408FBD,557

• Program Memory Type: FLASH
• Program Memory Size: 8KB (8K x 8)
• Package / Case: 64-LQFP
• Core Processor: 8051
• Core Size: 8-Bit
• Speed: 18MHz
• Connectivity: I²C, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, LCD, LED, POR, PWM, WDT
• Number Of I /o: 23
• Eeprom Size: 512 x 8
• Ram Size: 256 x 8
• Voltage - Supply (vcc/vdd): 2.4 V ~ 3.6 V
• Data Converters: A/D 8x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Processor Series: P89LPC9x
• Core: 80C51
• Data Bus Width: 8 bit
• Data Ram Size: 256 B
• Interface Type: I2C/SPI/UART
• Maximum Clock Frequency: 18 MHz
• Number Of Programmable I/os: 23
• Number Of Timers: 2
• Operating Supply Voltage: 2.4 V to 3.6 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• 3rd Party Development Tools: PK51, CA51, A51, ULINK2
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 8-ch x 10-bit
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: OM10097 - KIT FOR LCD DEMO LPC9408EPM900K - EMULATOR/PROGRAMMER NXP P89LPC9568-4000 - DEMO BOARD SPI/I2C TO DUAL UART568-3510 - DEMO BOARD SPI/I2C TO UART568-1759 - EMULATOR DEBUGGER/PROGRMMR LPC9X
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: 568-3228; 935280583557; P89LPC9408FBD

Philips Semiconductors
P89LPC9408_1
Product data sheet
7.19.1 CCU Clock (CCUCLK)
7.19.2 CCU clock prescaling
7.19.3 Basic timer operation
7.19.4 Output compare
7.19.5 Input capture
7.19.6 PWM operation
The CCU runs on the CCUCLK, which is either PCLK in basic timer mode, or the output of
a PLL. The PLL is designed to use a clock source between 0.5 MHz to 1 MHz that is
multiplied by 32 to produce a CCUCLK between 16 MHz and 32 MHz in PWM mode
(asymmetrical or symmetrical). The PLL contains a 4-bit divider to help divide PCLK into a
frequency between 0.5 MHz and 1 MHz.
This CCUCLK can further be divided down by a prescaler. The prescaler is implemented
as a 10-bit free-running counter with programmable reload at overflow.
The timer is a free-running up/down counter with a direction control bit. If the timer
counting direction is changed while the counter is running, the count sequence will be
reversed. The timer can be written or read at any time.
When a reload occurs, the CCU Timer Overflow Interrupt Flag will be set, and an interrupt
generated if enabled. The 16-bit CCU Timer may also be used as an 8-bit up/down timer.
There are four output compare channels A, B, C and D. Each output compare channel
needs to be enabled in order to operate and the user will have to set the associated I/O
pin to the desired output mode to connect the pin. When the contents of the timer matches
that of a capture compare control register, the Timer Output Compare Interrupt Flag
(TOCFx) becomes set. An interrupt will occur if enabled.
Input capture is always enabled. Each time a capture event occurs on one of the two input
capture pins, the contents of the timer is transferred to the corresponding 16-bit input
capture register. The capture event can be programmed to be either rising or falling edge
triggered. A simple noise filter can be enabled on the input capture by enabling the Input
Capture Noise Filter bit. If set, the capture logic needs to see four consecutive samples of
the same value in order to recognize an edge as a capture event. An event counter can be
set to delay a capture by a number of capture events.
PWM operation has two main modes, symmetrical and asymmetrical.
In asymmetrical PWM operation the CCU Timer operates in down-counting mode
regardless of the direction control bit.
In symmetrical mode, the timer counts up/down alternately. The main difference from
basic timer operation is the operation of the compare module, which in PWM mode is
used for PWM waveform generation.
•
•
Seven interrupts with common interrupt vector (one Overflow, two Capture,
four Compare)
Safe 16-bit read/write via shadow registers.
8-bit two-clock 80C51 core with 32 segment
Rev. 01 — 16 December 2005
© Koninklijke Philips Electronics N.V. 2005. All rights reserved.
P89LPC9408
4 LCD driver, 10-bit ADC
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