參數(shù)資料
型號(hào)： C515C-8RM
廠商： INFINEON TECHNOLOGIES AG
元件分類： DC/DC變換器
英文描述： RW-S Series - Econoline Regulated DC-DC Converters; Input Voltage (Vdc): 48V; Output Voltage (Vdc): 05V; Power: 2W; DIP24 Low Profile Miniature Package; 1kVDC Isolation; Feedback Regulated Output; 2:1 Wide Range Voltage Input; Continuous Short Circuit Protection; Less than 7mm Height; SMD Pinning Option; Efficiency to 87%
中文描述： 8位單片機(jī)
文件頁數(shù)： 21/96頁
文件大小： 1285K
代理商： C515C-8RM
C515C
Data Sheet
17
2003-02
Control of XRAM/CAN Controller Access
The XRAM in the C515C is a memory area that is logically located at the upper end of
the external memory space, but is integrated on the chip. Because the XRAM and the
CAN controller is used in the same way as external data memory the same instruction
types (MOVX) must be used for accessing the XRAM. Two bits in SFR SYSCON,
XMAP0 and XMAP1, control the accesses to the XRAM and the CAN controller.
SYSCON
Special Function Register
(B1
H
)
C515C-8R Reset Value: X010XX01
B
C515C-8E Reset Value: X010X001
B
LSB
Bit XMAP0 is hardware protected. If it is reset once (XRAM/CAN controller access
enabled) it cannot be set by software. Only a reset operation will set the XMAP0 bit
again.
Bit
XMAP1
Function
XRAM/CAN controller visible access control
Control bit for RD/WR signals during XRAM/CAN Controller
accesses. If addresses are outside the XRAM/CAN controller
address range or if XRAM is disabled, this bit has no effect.
XMAP1 = 0: The signals RD and WR are not activated during
accesses to the XRAM/CAN Controller
XMAP1 = 1: Ports 0, 2 and the signals RD and WR are activated
during accesses to XRAM/CAN Controller. In this
mode, address and data information during
XRAM/CAN Controller accesses are visible externally.
Global XRAM/CAN controller access enable/disable control
XMAP0 = 0: The access to XRAM and CAN controller is enabled.
XMAP0 = 1: The access to XRAM and CAN controller is disabled
(default after reset). All MOVX accesses are
performed via the external bus. Further, this bit is
hardware protected.
XMAP0
7
6
5
4
3
2
1
0
Bit No.
MSB
EALE
RMAP
–
B1H
SYSCON
CSWO XMAP1
–
PMOD
XMAP0
The function of the shaded bits is not described in this section.
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
C515C-LM 制造商:INFINEON 制造商全稱:Infineon Technologies AG 功能描述:8-Bit Single-Chip Microcontroller
C515-LN 制造商:INFINEON 制造商全稱:Infineon Technologies AG 功能描述:8-Bit CMOS Microcontroller
C515-LN/1RN 制造商:INFINEON 制造商全稱:Infineon Technologies AG 功能描述:8-Bit CMOS Microcontroller
C515S-250MA 制造商:COOPER BUSSMANN 功能描述:Fuse 0.25A 250V Slow Blow 2-Pin Axial Through Hole
C515S-2A 制造商:Cooper Bussmann 功能描述:
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