C517A_99 Datasheet, PDF (218/218 Pages) Siemens Semiconductor Group – 8-Bit CMOS Microcontroller

XMAP0 . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3
XMAP1 . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3
XRAM operation . . . . . . . . . . . . . 3-3 to 3-10
Access control by SYSCON . . . . . . . . 3-3
Access with DPTR (16-bit) . . . . . . . . . 3-5
Access with R0/R1 (8-bit) . . . . . . . . . . 3-5
Programming example . . . . . . . . . . 3-8
Usage of port 2 as I/O port . . . . . . . 3-8
Write page address to port 2. . . . . . 3-6
Write page address to XPAGE . . . . 3-7
XPAGE register. . . . . . . . . . . . . . . . 3-5
Behaviour of port 0 and 2 with MOVX 3-9
Reset operation . . . . . . . . . . . . . . . . . 3-9
Table - P0/P2 during MOVX instr. . . 3-10
Index
C517A
Semiconductor Group
10-6