P89LV51RD2BBC NXP Semiconductors, P89LV51RD2BBC Datasheet - Page 48

• Manufacturer Part Number: P89LV51RD2BBC
• Description: MCU 8-Bit 89LV 80C51 CISC 64KB Flash 3.3V 44-Pin TQFP Tray
• Manufacturer: NXP Semiconductors

Specifications of P89LV51RD2BBC

• Package: 44TQFP
• Device Core: 80C51
• Family Name: 89LV
• Maximum Speed: 40 MHz
• Ram Size: 1 KB
• Program Memory Size: 64 KB
• Operating Supply Voltage: 3.3 V
• Data Bus Width: 8 Bit
• Program Memory Type: Flash
• Number Of Programmable I/os: 32
• Interface Type: SPI/UART
• Operating Temperature: 0 to 70 °C
• Number Of Timers: 3

NXP Semiconductors
P89LV51RB2_RC2_RD2_5
Product data sheet
Fig 21. PCA interrupt system
PCA TIMER/COUNTER
MODULE0
MODULE1
MODULE2
MODULE3
MODULE4
CMOD.0
Table 35.
Not bit addressable; reset value: 00H.
Table 36.
Bit
7
6
5 to 3
2 to 1
0
Bit
Symbol
ECF
CMOD - PCA counter mode register (address D9H) bit allocation
CMOD - PCA counter mode register (address D9H) bit descriptions
Symbol
CIDL
WDTE
-
CPS1,
CPS0
ECF
CIDL
7
CCAPMn.0
Rev. 05 — 15 December 2009
WDTE
CF
Description
Counter Idle Control: CIDL = 0 programs the PCA Counter to continue
functioning during Idle mode. CIDL = 1 programs it to be gated off
during idle.
Watchdog Timer Enable: WDTE = 0 disables watchdog timer function
on module 4. WDTE = 1 enables it.
Reserved for future use. Should be set to
PCA Count Pulse Select (see
PCA Enable Counter Overflow Interrupt: ECF = 1 enables CF bit in
CCON to generate an interrupt. ECF = 0 disables that function.
6
CR
ECCFn
5
-
-
P89LV51RB2/RC2/RD2
CCF4
4
-
CCF3
8-bit microcontrollers with 80C51 core
Table 37
CCF2
IE.6
3
-
EC
below).
CCF1
CPS1
‘0’
2
IE.7
by user programs.
EA
CCF0
© NXP B.V. 2009. All rights reserved.
CPS0
CCON
(D8H)
to
interrupt
priority
decoder
1
002aaa533
ECF
48 of 76
0