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EM78P516NH Datasheet(PDF) 39 Page - ELAN Microelectronics Corp

Part # EM78P516NH
Description  8-Bit Microcontroller
PDF  98 Pages
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Manufacturer  EMC [ELAN Microelectronics Corp]
Direct Link  http://www.emc.com.tw
Logo EMC - ELAN Microelectronics Corp

EM78P516NH Datasheet(HTML) 39 Page - ELAN Microelectronics Corp

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EM78P516N
8-Bit Microcontroller
Product Specification (V1.0) 04.09.2015
•••• 33
(This specification is subject to change without prior notice)
6.2.7 IOCA0, RAM_DB (128 Bytes RAM Data Buffer)
(Address: 0Ah, Bit 0 of R5 = “0”)
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
RAM_D7
RAM_D6
RAM_D5
RAM_D4
RAM_D3
RAM_D2
RAM_D1
RAM_D0
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Bits 7~0: 128 bytes RAM data transfer register
6.2.8 IOCB0, CNT1PR (Counter 1 Preset Register)
(Address: 0Bh, Bit 0 of R5 = “0”)
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Bit 7 ~ Bit 0: These are Counter 1 buffers which user can read and write. Counter 1 is
an 8-bit down-count timer with 8-bit prescaler used to preset the counter and read the
preset value. The prescaler is set by the IOC91 register. After an interrupt, it will auto
reload the preset value.
6.2.9 IOCC0, CNT2PR (Counter 2 Preset Register)
(Address: 0Ch, Bit 0 of R5 = “0”)
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Bit 7 ~ Bit 0: These are Counter 2 buffers which user can read and write. Counter 2 is
an 8-bit down-count timer with 8-bit prescaler used to preset the counter and read the
preset value. The prescaler is set by IOC91 register. After an interrupt, it will reload the
preset value.
When IR output is enabled, this control register can obtain carrier frequency output.
If the Counter 2 clock source is equal to FT ,
then
Carrier frequency (Fcarrier) =
prescaler
*
)
1
+
value
_
preset
(
*
2
F
T



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