參數(shù)資料
型號: MC68HC705CL48
廠商: FREESCALE SEMICONDUCTOR INC
元件分類: 微控制器/微處理器
英文描述: 8-BIT, OTPROM, 1.802 MHz, MICROCONTROLLER, PQFP112
封裝: TQFP-112
文件頁數(shù): 139/145頁
文件大小: 673K
代理商: MC68HC705CL48
June 11, 1997
GENERAL RELEASE SPECIFICATION
MC68HC05CL48
CALLER-ID
MOTOROLA
REV 2.0
11-9
11.7.4 Caller_ID Data Register (CDDR)
CDDR[7:0] is the Caller ID data in byte format.
11.8
DESIGN PARAMETERS
The data signalling interface conforms to the recommended operating ranges of
the physical layer test parameters for TYPE 1 CPE as described in Bellcore
Publication SR-NWT-003004.
76543210
CDDR
$000E
READ
CDD7
CDD6
CDD5
CDD4
CDD3
CDD2
CDD1
CDD0
WRITE
RESET
UUUU
0000
U = UNAFFECTED
Table 11-1. Typical Input parameter
Parameters
Operating Range
Units
Mark Frequency
1188 ~ 1212
Hz
Space Frequency
2178 ~ 2222
Hz
Mark Level (600 ohm)
-12 ~ -32
dBm
Space Level (600 ohm)
-12 ~ -36
dBm
Carrier Frequency
1700
Hz
Twist Immunity (600 ohm)
+/- 10
dBm
Baud Rate
1188 ~ 1212
baud
Ringing Frequency
10 to 55
Hz
Noise Immunity
(Signal to Noise Ratio)
-20 (for noise below 200 and
above 3200 Hz)
25 (for noise between 200 and
3200 Hz)
dB
Channel Seizure Delay
250 ~ 3600
ms
Input Impedance
500
k
Immunity to CS and MS
10
ms
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