73S1209F Maxim, 73S1209F Datasheet - Page 15
![no-image](/images/no-image-200.jpg)
73S1209F
Manufacturer Part Number
73S1209F
Description
The 73S1209F is a self-contained, SoC smart card reader IC that is an ideal solution for serially connected ISO 7816 design
Manufacturer
Maxim
Datasheet
1.73S1209F.pdf
(123 pages)
- Current page: 15 of 123
- Download datasheet (2Mb)
Address
DS_1209F_004
0x7FFF
0x0000
Dual Data Pointer: The Dual Data Pointer accelerates the block moves of data. The standard DPTR is a
16-bit register that is used to address external memory. In the 80515 core, the standard data pointer is
called DPTR, the second data pointer is called DPTR1. The data pointer select bit chooses the active
pointer. The data pointer select bit is located at the LSB of the DPS IRAM special function register
(DPS.0). DPTR is selected when DPS.0 = 0 and DPTR1 is selected when DPS.0 = 1.
The user switches between pointers by toggling the LSB of the DPS register. All DPTR-related
instructions use the currently selected DPTR for any activity.
Note: The second data pointer may not be supported by certain compilers.
Rev. 1.2
Program Memory
Program
memory
Flash
Bytes
Use
32K
Address
0xFFFF
0XFF80
0XFE00
0xFBFF
0x0800
0x07FF
0x0000
0xFF7F
External Data Memory
Smart Card Control
Peripheral Control
Registers (128b)
Figure 2: Memory Map
(384b)
XRAM
Use
---
Address
0xFF
0x80
0x7F
0x48
0x47
0x20
0x1F
0x18
0x17
0x10
0x0F
0x08
0x07
0x00
Internal Data Memory
Byte RAM
Indirect
Access
73S1209F Data Sheet
Register bank 3
Register bank 2
Register bank 1
Register bank 0
Bit/Byte RAM
Byte RAM
Use
Access
Direct
SFRs
15
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