參數(shù)資料
型號: EM78P809N
廠商: ELAN Microelctronics Corp .
元件分類: 8位微控制器
英文描述: 8-BIT MICROCONTROLLER
中文描述: 8位微控制器
文件頁數(shù): 35/75頁
文件大?。?/td> 531K
代理商: EM78P809N
EM78P809N
8-Bit Microcontroller
Product Specification
(V1.0) 07.26.2005
(This specification is subject to change without further notice)
31
Table 5
ADCK1:0 Operation Mode
Max. Frequency
(Fc)
Max. Conversion
Rate per Bit
Max. Conversion
Rate
0 0
Fc/4
1MHz
250kHz (4μs)
48us(20.8kHz)
0 1
Fc/16
4MHz
250kHz (4μs)
48us(20.8kHz)
1 0
Fc/32
8MHz
250kHz (4μs)
8us(20.8kHz)
1 1
Reserved
-
-
-
4.6 Time Base Timer and Keytone Generator
Registers for AD Converter Circuit
R_BANK Address NAME
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
BANK 1
0X0E
TBKTC
TEN
TCK1
TCK0
0
TBTEN TBTCK2 TBTCK1 TBTCK0
R/W
R/W
R/W
--
R/W
R/W
R/W
R/W
BANK 0
0x0F
ISFR2
0
UERRIF
RBFF
TBEF
TBIF
EXIF1
0
TCIF0
0
R/W
R/W
R/W
R/W
R/W
0
R/W
SPR
0x0F
IMR2
0
UERRIE
URIE
UTIE
TBIE
EXIE1
0
TCIE0
0
R/W
R/W
R/W
R/W
R/W
0
R/W
MUX
Fosc/2
Fosc/2
Fosc/2
Fosc/2
13
12
11
10
TBKTC
TCK1:0
2
/TONE Pin
TEN
D Q
Output Latch
Data Output
Output Enable (P63)
Fig. 7. TONE Output Pin Configuration
Keytone output can generate 50% duty pulse for driving a piezo-electric buzzer. The
P63 must be set to “1” before keytone enable and it can be halted by setting P63 to “0”.
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