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EM78P257AP 数据表(PDF) 21 Page - ELAN Microelectronics Corp

部件名 EM78P257AP
功能描述  8-BIT MICROCONTROLLER
PDF  91 Pages
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制造商  EMC [ELAN Microelectronics Corp]
网页  http://www.emc.com.tw
标志 EMC - ELAN Microelectronics Corp

EM78P257AP 数据表(HTML) 21 Page - ELAN Microelectronics Corp

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EM78P257
OTP ROM
This specification is subject to change without prior notice.
07.27.2004 (V1.4)
21
Pin 12 can choose P66 ,CIN4- or TCC2, and the choice is decided by IOCA0. If CIN4- was not
chosen as comparator1(-) input, this pin will decide to set MOUSEN as ‘1’ and TCC2E of IOC80 is
also set as ‘1’, then set the pin to TCC2, otherwise set the pin to P66.
For EM78P257B
Pin 11 can choose P64 or CO4 only, and decided by COIE4 of IOC90.
Pin 12 can choose CIN3+ only.
Pin 13 can choose P66 ,CIN4- or TCC2, and the choice is decided by IOCA0. If CIN4- was not
chosen as comparator1(-) input, this pin will decide to set MOUSEN as ‘1’ and TCC2E of IOC80 is
also set as ‘1’, then set the pin to TCC2, otherwise set the pin to P66.
• Bit 2 (CE3): Comparator (CO3) enable bit
0 = Comparator is CO3 off (default value).
For EM78P257A
Pin 9 can choose P63 only.
Pin 8 can choose P62 only.
Pin 7 can choose P61 or TCC1 only. If MOUSEN is ‘1’, define pin as an input of TCCA (TCC1). If
MOUSEN is ‘0’, then the choice is decided by TCCATS of RA.
For EM78P257B
Pin 10 can choose P63 only.
Pin 9 can choose P62 only.
Pin 8 can choose P61 or TCC1 only. If MOUSEN is ‘1’ defined pin as an input of TCCA(TCC1) , if
MOUSEN is ‘0’, then the choice is decided by TCCATS of RA.
1 = Comparator is CO3 on.
For EM78P257A
Pin 9 can choose P63 or CO3 only, and decided by COIE3 of IOC90.
Pin 8 can choose CIN3+ only.
Pin 7 can choose P61 ,CIN3- or TCC1, and the choice is decided by IOCA0. If CIN3- was not
chosen as comparator1(-) input, then this pin’s status will be decided by TCCATS of RA. When
TCCATS is ‘1’, then Pin 7 is defined as TCC1, otherwise the status is defined as P61.
For EM78P257B
Pin 10 can choose P63 or CO3 only, and decided by COIE3 of IOC90.
Pin 9 can choose CIN3+ only.



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