DS80C320-MCG+ Dallas Semiconductor, DS80C320-MCG+ Datasheet - Page 20

• Manufacturer Part Number: DS80C320-MCG+
• Description: Microcontroller, 8051 Comp., 4 8-Bit I/O Ports, 64K ROM/RAM, 25 MHz, 5 V, PDIP40
• Manufacturer: Dallas Semiconductor

Specifications of DS80C320-MCG+

• Eeprom Memory: 0 Bytes
• Input Output: 32
• Interface: UART
• Memory Type: ROMless
• Number Of Bits: 8
• Package Type: 40-pin PDIP
• Programmable Memory: 0 Bytes
• Ram Size: 256 Bytes
• Speed: 25 MHz
• Timers: 3-16-bit
• Voltage, Range: 4.25-5.5 V
• Lead Free Status / Rohs Status: RoHS Compliant part Electrostatic Device

SPECIAL-FUNCTION REGISTERS
Most special features of the DS80C320/DS80C323 or 80C32 are controlled by bits in the SFRs, allowing
the devices to add many features but use the same instruction set. When writing software to use a new
feature, the SFR must be defined to an assembler or compiler using an equate statement. This is the only
change needed to access the new function. The DS80C320/DS80C323 duplicate the SFRs that are
contained in the standard 80C32. Table 5 shows the register addresses and bit locations. Many are
standard 80C32 registers. The High-Speed Microcontroller User’s Guide describes all SFRs.
Table 5. Special-Function Register Locations
REGISTER
WDCON
SADDR0
SADDR1
SADEN0
SADEN1
RCAP2H
CKCON
STATUS
RCAP2L
T2MOD
SCON1
SCON0
T2CON
SBUF1
TMOD
SBUF0
TCON
DPH1
PCON
DPL1
EXIF
DPH
PSW
ACC
DPL
DPS
TH0
TH1
TH2
TL0
TL1
TL2
EIE
EIP
TA
SP
P1
P2
P3
IE
IP
B
SM0/FE_0
SM0/FE_0
SMOD_1
SMOD_0
GATE
BIT 7
WD1
P1.7
P2.0
P3.7
TF1
TF2
IE5
PIP
CY
EA
—
—
—
—
0
SMOD0
SM1_0
SM1_0
BIT 6
EXF2
WD0
POR
C/
TR1
P1.6
P2.6
P3.6
ES1
HIP
IE4
PS1
AC
—
—
—
0
T
SM2_0
SM2_0
RCLK
BIT 5
EPFI
T2M
P1.5
P2.5
P3.5
TF0
ET2
PT2
IE3
LIP
M1
—
—
F0
—
—
0
REN_0
REN_0
EWDI
PWDI
TCLK
BIT 4
T1M
20 of 40
TR0
P1.4
P2.4
P3.4
ES0
PS0
RS1
PFI
IE2
M0
—
—
0
1
EXEN2
TB8_0
TB8_0
WDIF
GATE
BIT 3
T0M
GF1
P1.3
P2.3
P3.3
EX5
PX5
ET1
PT1
RS0
IE1
—
—
0
1
RGMD
WTRF
RB8_0
RB8_0
BIT 2
MD2
C/
P1.2
P2.2
EX1
P3.2
PX1
TR2
EX4
PX4
GF0
IT1
OV
—
0
1
T
RGSL
BIT 1
STOP
T2OE
EWT
C/
MD1
TI_0
TI_0
EX3
P1.1
P2.1
P3.1
PX3
ET0
PT0
IE0
M1
FL
0
1
T2
CP/
DCEN
BIT 0
RWT
IDLE
MD0
RI_0
BGS
RI_0
SEL
P1.0
P2.0
EX0
P3.0
EX2
PX2
PX0
IT0
M0
1
P
RL2
ADDRESS
AAh
BAh
CAh
CBh
CCh
CDh
8Ah
8Dh
A0h
A8h
A9h
D0h
D8h
8Bh
8Ch
8Eh
B0h
B8h
B9h
C0h
C1h
C5h
C7h
C8h
C9h
E0h
E8h
81h
82h
83h
84h
85h
86h
87h
88h
89h
90h
91h
98h
99h
F0h
F8h