p87c770aar NXP Semiconductors, p87c770aar Datasheet - Page 8

• Manufacturer Part Number: p87c770aar
• Description: Microcontrollers Ntsc With On-screen Display Closed Caption
• Manufacturer: NXP Semiconductors

6
The P8xCx70 family offers a choice of different RAM and ROM configurations; see “Ordering information”. The device has no external memory
capability, consequently the RD (read) and WR (write) signals are not bonded out. EA (External Access), PSEN (Program Store Enable) and ALE
(Address Latch Enable) are bonded out for testing purposes only.
For the complete memory map of the P8xC770 family refer to the 80C51 architecture in “Data Handbook IC20” .
6.1
The SFRs are presented in ascending address order.
Table 2 SFR address map summary
80H
81H
86H
87H
88H
89H
8AH
8BH
8CH
8DH
90H
92H
96H
98H
A0H
A6H
A8H
B0H
B6H
B7H
B8H
C6H
ADDRESS
MEMORY ORGANIZATION
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
SFR address map summary
P0 (latch)
Stack Pointer (SP)
PWM0 (7-bit PWM)
Power Control Register (PCON)
Timer/Counter Control Register (TCON)
Timer/Counter Mode Control Register (TMOD)
Timer 0 Low byte (TL0)
Timer 1 Low byte (TL1)
Timer 0 High byte (TH0)
Timer 1 High byte (TH1)
P1 (latch)
Standby Control Register (STBCON)
PWM1 (7-bit PWM)
Interrupt Request Register 1 (IRQ1)
P2 (latch)
PWM2 (7-bit PWM)
Interrupt Enable Register 0 (IEN0)
P3 (latch)
PWM3 (7-bit PWM)
Slice Line Register (SL)
Interrupt Priority Register 0 (IP0)
PWM4 (7-bit PWM)
REGISTER NAME
P07
SP7
PWM0E data6
TF1
Gate
TL07
TL17
TH07
TH17
P17
PWM1E data6
P27
PWM2E data6
EA
P37
PWM3E data6
PWM4E data6
7
P06
SP6
TR1
C/T
TL06
TL16
TH06
TH16
P16
RCC
P26
P36
6
P05
SP5
data5
TF0
M1
TL05
TL15
TH05
TH15
P15
data5
RBUSY
P25
data5
ES1
P35
data5
PS1
data5
5
P04
SP4
data4
WLE
TR0
M0
TL04
TL14
TH04
TH14
P14
data4
P24
data4
P34
data4
CS4
data4
4
P03
SP3
data3
GF1
IE1
Gate
TL03
TL13
TH03
TH13
P13
data3
P23
data3
ET1
P33
data3
CS3
PT1
data3
3
P02
SP2
data2
GF0
IT1
C/T
TL02
TL12
TH02
TH12
P12
data2
P22
data2
EX1
P32
data2
CS2
PX1
data2
2
P01
SP1
data1
PD
IE0
M1
TL01
TL11
TH01
TH11
P11
data1
P21
data1
ET0
P31
data1
CS1
PT0
data1
1
P00
SP0
data0
IDL
IT0
M0
TL00
TL10
TH00
TH10
P10
STBY
data0
P20
data0
EX0
P30
data0
CS0
PX0
data0
0