P89LPC9151FDH,129 NXP Semiconductors, P89LPC9151FDH,129 Datasheet - Page 22

• Manufacturer Part Number: P89LPC9151FDH,129
• Description: IC 80C51 MCU FLASH 2KB 14TSSOP
• Manufacturer: NXP Semiconductors
• Series: LPC900r

Specifications of P89LPC9151FDH,129

• Program Memory Type: FLASH
• Program Memory Size: 2KB (2K x 8)
• Package / Case: 14-TSSOP
• Core Processor: 8051
• Core Size: 8-Bit
• Speed: 18MHz
• Connectivity: I²C, UART/USART
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Number Of I /o: 12
• Ram Size: 256 x 8
• Voltage - Supply (vcc/vdd): 2.4 V ~ 3.6 V
• Data Converters: A/D 4x8b; D/A 1x8b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Processor Series: P89LPC
• Core: 80C51
• Data Bus Width: 8 bit
• Data Ram Size: 256 B
• Interface Type: SPI
• Maximum Clock Frequency: 18 MHz
• Number Of Programmable I/os: 10
• 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 bit, 4 Channel
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: 935290259129

Table 6.
* indicates SFRs that are bit addressable.
[1]
[2]
[3]
[4]
[5]
[6]
Name
WDCON
WDL
WFEED1
WFEED2
All ports are in input only (high-impedance) state after power-up.
BRGR1 and BRGR0 must only be written if BRGEN in BRGCON SFR is logic 0. If any are written while BRGEN = 1, the result is unpredictable.
The RSTSRC register reflects the cause of the P89LPC9151 reset except BOIF bit. Upon a power-up reset, all reset source flags are cleared except POF and BOF; the power-on
reset value is x011 0000.
After reset, the value is 1110 01x1, i.e., PRE2 to PRE0 are all logic 1, WDRUN = 1 and WDCLK = 1. WDTOF bit is logic 1 after watchdog reset and is logic 0 after power-on reset.
Other resets will not affect WDTOF.
On power-on reset and watchdog reset, the TRIM SFR is initialized with a factory preprogrammed value. Other resets will not cause initialization of the TRIM register.
The only reset sources that affect these SFRs are power-on reset and watchdog reset.
Special function registers - P89LPC9151
Description
Watchdog
control register
Watchdog load
Watchdog
feed 1
Watchdog
feed 2
SFR
addr.
C1H
C2H
C3H
A7H
Bit functions and addresses
PRE2
MSB
PRE1
PRE0
-
-
WDRUN
WDTOF
WDCLK
LSB
Reset value
Hex
[4][6]
FF
Binary
1111 1111