參數(shù)資料
型號(hào)： PCF5083
廠商： NXP Semiconductors N.V.
英文描述： STEEL COVER
中文描述： GSM信號(hào)處理IC
文件頁數(shù)： 66/136頁
文件大?。?/td> 602K
代理商： PCF5083
1996 Oct 29
66
Philips Semiconductors
Objective specification
GSM signal processing IC
PCF5083
CI_decrypt_init
(note 1)
Initialization for CI_decrypt. The decrypt_flag enables or disables
decryption.
decrypt_flag = 0, means no decryption.
decrypt_flag = 1, decryption according to A5/1.
decrypt_flag = 2, decryption according to A5/2
t1 is absolute Frame Number (FN) divisor 26
×
51 (0 to 2047,11 bits).
t2 is absolute Frame Number (FN) modulo 26 (0 to 25, 5 bits)
t3 is absolute Frame Number (FN) modulo 51 (0 to 50, 6 bits)
key[0 to 3] contains 64 bits of the ciphering key K
c
in accordance with
“GSM Rec. 03.20” The bits are loaded by the algorithm in LSB first order
(first bit = LSB {key[0]}, last bit = MSB {key[3]}).
The A8 algorithm delivers 8 bytes kc[0] to kc[7]. The mapping between kc
and key is as follows:
key[0] = kc[6] << 8; kc[7]
key[1] = kc[4] << 8; kc[5]
key[2] = kc[2] << 8; kc[3]
key[3] = kc[0] << 8; kc[1]
CI_encrypt
4
decrypt_flag
t1
t2
t3
key[4]
Encryption of n_bursts normal bursts, info_buff_id determines the buffer
where the information bits of the first burst are stored.
CI_encrypt_init
5
info_buff_id
n_bursts
Initialization for CI_encrypt. The encrypt_flag enables or disables
encryption.
decrypt_flag = 0, means no encryption.
decrypt_flag = 1, encryption according to A5/1.
decrypt_flag = 2, encryption according to A5/2.
t1 is absolute Frame Number (FN) divisor 26
×
51 (0 to 2047,11 bits).
t2 is absolute Frame Number (FN) modulo 26 (0 to 25, 5 bits)
t3 is absolute Frame Number (FN) modulo 51 (0 to 50, 6 bits)
Key[0 to 3] contains 64 bits of the ciphering key K
c
in accordance with
“GSM Rec. 03.20” The bits are loaded by the algorithm in LSB first order
(first bit = LSB {key[0]}, last bit = MSB {key[3]}).
The A8 algorithm delivers 8 bytes kc[0] to kc[7]. The mapping between kc
and key is as follows:
key[0] = kc[6] << 8; kc[7]
key[1] = kc[4] << 8; kc[5]
key[2] = kc[2] << 8; kc[3]
key[3] = kc[0] << 8; kc[1]
6
encrypt_flag
t1
t2
t3
key[4]
DESCRIPTION
ID
PARAMETERS
RETURN
VALUES
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
PCF5083H/001/F2 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:GSM signal processing IC
PCF5083H/5V2/F3 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:GSM signal processing IC
PCF5083H/F2 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:GSM signal processing IC
PCF51AC128ACFUE 功能描述:32位微控制器 - MCU 32 Bit 128K FLASH 32K RAM CAN EN RoHS:否 制造商:Texas Instruments 核心:C28x 處理器系列:TMS320F28x 數(shù)據(jù)總線寬度:32 bit 最大時(shí)鐘頻率:90 MHz 程序存儲(chǔ)器大小:64 KB 數(shù)據(jù) RAM 大小:26 KB 片上 ADC:Yes 工作電源電壓:2.97 V to 3.63 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:LQFP-80 安裝風(fēng)格:SMD/SMT
PCF51AC128ACLKE 功能描述:32位微控制器 - MCU 32 Bit 128K FLASH 32K RAM CAN EN RoHS:否 制造商:Texas Instruments 核心:C28x 處理器系列:TMS320F28x 數(shù)據(jù)總線寬度:32 bit 最大時(shí)鐘頻率:90 MHz 程序存儲(chǔ)器大小:64 KB 數(shù)據(jù) RAM 大小:26 KB 片上 ADC:Yes 工作電源電壓:2.97 V to 3.63 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:LQFP-80 安裝風(fēng)格:SMD/SMT
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