P80C592FFA/00,518 NXP Semiconductors, P80C592FFA/00,518 Datasheet - Page 101

• Manufacturer Part Number: P80C592FFA/00,518
• Description: IC 80C51 MCU 8BIT ROMLESS 68PLCC
• Manufacturer: NXP Semiconductors
• Series: 80Cr

Specifications of P80C592FFA/00,518

• Core Processor: 8051
• Core Size: 8-Bit
• Speed: 16MHz
• Connectivity: CAN, EBI/EMI, UART/USART
• Peripherals: DMA, POR, PWM, WDT
• Number Of I /o: 48
• Program Memory Size: -
• Program Memory Type: ROMless
• Eeprom Size: -
• Ram Size: 512 x 8
• Voltage - Supply (vcc/vdd): 4.5 V ~ 5.5 V
• Data Converters: A/D 8x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 68-LCC (J-Lead)
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

Philips Semiconductors
1996 Jun 27
LOC
00A0
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8-bit microcontroller with on-chip CAN
OBJ
54E0
C4
03
2415
83
6007
F5D8
75DB96 133
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LINE SOURCE
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; determine the destination address in data-memory for the
; message's Data-Field
ANL
SWAP
RR
; this value is used as an index for an array of 8 bytes
; containing the destination-addresses for the 8 different
; messages. Note, that the #RX_ARRAY_OFFSET is due to the
; program counter-relative access to the array.
ADD
MOVC
RX_ARRAY_OFFSET:
; if a message passes the acceptance-filter of the CAN
; Controller, but the CPU doesn't need it, the array
; entry's value may be set to zero indicating this.
; The following jz instruction cares for this.
JZ
; now copy the Data-Field (only) from CAN- to CPU memory
; with the aid of the DMA-logic. Note, that a TX-DMA is
; performed when writing 8AH (DMA + address 10) into CANADR
; and a RX-DMA is performed when writing 94H (DMA + address 20)
; ... 9DH (DMA + address 29) into CANADR. Here address 22 is
; used to copy just the Data-Field.
MOV
MOV
; the DMA-transfer is done in at maximum 2 instruction cycles.
; During the transfer, neither the data-memory (RAM) nor one
; of the SFRs CANADR, CANDAT, CANCON and
; CANSTA may be accessed by the CPU.
; For simplicity, two NOPs are used here.
NOP
NOP
101
A, #ID2_0_MASK
A
A
A, #RX_ARRAY_START
A, @A + PC
CAN_RX_READY
CANSTA, A
CANADR, #CAN_RX_DMA ; starts RX-DMA at address 22
RX_ARRAY_OFFSET
; use ID.2 ... ID.0 only
; A = 4*ID.2 + 2*ID.1 + ID.0
; data-memory address
Product specification
P8xC592