p87c591vfb NXP Semiconductors, p87c591vfb Datasheet - Page 12

• Manufacturer Part Number: p87c591vfb
• Description: Single-chip 8-bit Microcontroller With Can Controller
• Manufacturer: NXP Semiconductors

Philips Semiconductors
7
The Central Processing Unit (CPU) manipulates operands in three memory spaces as follows (see Fig.5):
2000 Jul 26
handbook, full pagewidth
16 Kbytes internal resp. 64 Kbytes external Program Memory
512 bytes internal Data Memory Main-and Auxiliary RAM
up to 64 Kbytes external Data Memory (with 256 bytes residing in the internal Auxiliary RAM).
Single-chip 8-bit microcontroller with CAN controller
MEMORY ORGANIZATION
16383
0
16384
INTERNAL
64K
(EA = 1)
PROGRAM MEMORY
EXTERNAL
Fig.5 Memory map and address space with EXTRAM = 0.
EXTERNAL
(EA = 0)
255
127
0
INDIRECT ONLY
DIRECT AND
INDIRECT
MAIN RAM
OVERLAPPED SPACE
12
INTERNAL DATA MEMORY
SFRs
(EXTRAM = 0)
AUXILIARY
RAM
MHI005
Preliminary Specification
64K
256
DATA MEMORY
EXTERNAL
P8xC591