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EM78P468SL44 Scheda tecnica(PDF) 21 Page - ELAN Microelectronics Corp

Il numero della parte EM78P468SL44
Spiegazioni elettronici  8-Bit Microcontroller
PDF  94 Pages
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Produttore elettronici  EMC [ELAN Microelectronics Corp]
Homepage  http://www.emc.com.tw
Logo EMC - ELAN Microelectronics Corp

EM78P468SL44 Scheda tecnica(HTML) 21 Page - ELAN Microelectronics Corp

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EM78P468S
8-Bit Microcontroller
Product Specification (V1.0) 07.28.2016
 15
(This specification is subject to change without prior notice)
6.1.5 R4, RSR (RAM Select Register)
(Address: 04h)
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
RBS1
RBS0
RSR5
RSR4
RSR3
RSR2
RSR1
RSR0
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Bits 7 ~ 6 (RBS1 ~ RBS0): determine which bank is activated among the four banks.
See the data memory configuration in Figure 6-2. Use the Bank Instruction
(e.g. Bank 1) to change banks.
Bits 5 ~ 0 (RSR5 ~ RSR0): used to select up to 64 registers (Address: 00~3F) in
indirect addressing mode. If no indirect addressing is used, the RSR can be used
as an 8-bit general purpose read/writer register.
*Code option
“ADVMS” = 0 (Advance Enable)
BANK1
BANK0
Special Register Bank
RAM Bank
0
0
Bank 0
Bank 0
0
1
Bank 1
Bank 1
1
0
Bank 0
Bank 2
1
1
Bank 0
Bank 3
*Code Option
“ADVMS” = 1 (Advance Disable)
BANK1
BANK0
Special Register Bank
RAM Bank
0
0
Bank 0
Bank 0
0
1
Bank 0
Bank 1
1
0
Bank 0
Bank 2
1
1
Bank 0
Bank 3
6.1.6 Bank 0 R5, Port 5 (Port 5 I/O Data and Page of Register Select
(Address: 05h)
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
R57
R56
R55
R54
IOCPAGE
R/W
R/W
R/W
R/W
-
-
-
R/W
Bits 7~4: Four bits I/O registers of Port 5
User can use the IOC50 register to define each bit either as input or output.
Bits 3~1: Not used
Bit 0 (IOCPAGE): change IOC5 ~ IOCF to another page
IOCPAGE =
“0” : Page 0 (select register of IOC50 to IOC F0)
IOCPAGE =
“1” : Page 1 (select register of IOC61 to IOC F1)



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