DS80C320-ECD DALLAS [Dallas Semiconductor], DS80C320-ECD Datasheet - Page 120

• Manufacturer Part Number: DS80C320-ECD
• Description: High-Speed Microcontroller User Guide
• Manufacturer: DALLAS [Dallas Semiconductor]

I/O PORT TIMING FOR MOV INSTRUCTION Figure 10-1
OPTIONAL FUNCTIONS
Every port pin on the High-Speed Microcontroller has an optional special function. These functions are
individually selectable. They can also be turned on and off dynamically to suit the application. The
optional function for each port pin is described briefly below. More information about each optional
function is available in the section dealing with that function or in the appropriate data sheet.
P0.0 AD0.0 Multiplexed Address/data bus
P2.0 A8 MSB Address bus
P0.1 AD0.1 Multiplexed Address/data bus
P2.1 A9 MSB Address bus
P0.2 AD0.2 Multiplexed Address/data bus
P2.2 A10 MSB Address bus
P0.3 AD0.3 Multiplexed Address/data bus
P2.3 A11 MSB Address bus
P0.4 AD0.4 Multiplexed Address/data bus
P2.4 A12 MSB Address bus
P0.5 AD0.5 Multiplexed Address/data bus
P2.5 A13 MSB Address bus
P0.6 AD0.6 Multiplexed Address/data bus
P2.6 A14 MSB Address bus
P0.7 AD0.7 Multiplexed Address/data bus
P2.7 A15 MSB Address bus
AD0-AD7
PORT 2
PSEN
P1.0
ALE
CLK
C1
Address
Opcode
Last Cycle of
A0-A7
Instr. & MOV
MOV
Previous
C2
prefetch
C3
A8-A15
Instruction
Opcode
D0-D7
MOV
C4
C1
Operand
Address
MOV Cycle 1
A0-A7
MOV
C2
C3
A8-A15
Instruction
Operand
120 of 175
D0-D7
MOV
P1.0 T2 Timer 2 output pulse
P3.0 RXD0 Serial Receive UART0
P1.1 T2EX Timer 2 capture/reload input
P3.1 TXD0 Serial Transmit UART0
P1.2 RXD1 Serial Receive UART1
P3.2 INT0 External Interrupt 0 active low
P1.3 TXD1 Serial Transmit UART1
P3.3 INT1 External Interrupt 1 active low
P1.4 INT2 External Interrupt 2 rising edge active
P3.4 T0 Timer 0 input
P1.5 INT3 External Int. 3 falling edge active
P3.5 T1 Timer 1 input
P1.6 INT4 External Interrupt 4 rising edge active
P3.6 WR Write strobe
P1.7 INT5 External Int. 5 falling edge active
P3.7 RD Read strobe
C4
C1
Instruction
First NOP
Address
MOV Cycle 2
& First NOP
A0-A7
C2
prefetch
C3
A8-A15
Instruction
First NOP
Opcode
D0-D7
C4
High-Speed Microcontroller User’s Guide
C1
Second NOP
Instruction
Address
Second NOP
A0-A7
First NOP
prefetch
Cycle &
C2
A8-A15
C3
Second NOP
Instruction
Opcode
D0-D7
C4