参数资料
型号: SAB-C515C-LM
厂商: INFINEON TECHNOLOGIES AG
元件分类: 微控制器/微处理器
英文描述: 8-BIT, 10 MHz, MICROCONTROLLER, PQFP80
封装: PLASTIC, MQFP-80
文件页数: 15/98页
文件大小: 1117K
代理商: SAB-C515C-LM
C515C
Data Sheet
18
2003-02
The XRAM/CAN controller can be accessed by read/write instructions (MOVX A,DPTR,
MOVX @DPTR,A), which use the 16-bit DPTR for indirect addressing. For accessing the
XRAM or CAN controller, the effective address stored in DPTR must be in the range of
F700H to FFFFH.
The XRAM can be also accessed by read/write instructions (MOVX A,@Ri, MOVX
@Ri,A), which use only an 8-bit address (indirect addressing with registers R0 or R1).
Therefore, a special page register XPAGE which provides the upper address information
(A8-A15) during 8-bit XRAM accesses. The behaviour of Port 0 and P2 during a MOVX
access depends on the control bits XMAP0 and XMAP1 in register SYSCON and on the
state of pin EA. Table 3 lists the various operating conditions.
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