參數(shù)資料
型號： VMS115
元件分類： 加密電路
英文描述： TELECOM, DATA ENCRYPTION CIRCUIT, PQFP100
封裝： MQFP-100
文件頁數(shù)： 11/64頁
文件大小： 572K
代理商： VMS115
VLSI Technology, a subsidiary of Philips Semiconductors
8/10/99
19
Revision: 2.3
906
Data Sheet
5.2.1
Performance
5.2.2
Register Summary
5.2.2.1
K Register
The K value (32 bits) is stored in this register. The value is the pre-computed value of K = -N[0]-
1. K is the negative modular inverse of the least significant word of the modulus N. Word size is
determined by the bit width of the underlying multiplier, i.e. 32-bits. The value K must be
reloaded into this register every time the modulus changes.
5.2.2.1.1
K Value Computation
The following code segment is sample C code used to calculate the K value. The code is not opti-
mized and is provided for explanatory purposes.
unsigned long kcalc (unsigned long n0)
{
int i;
unsigned long k;
unsigned long pwr1, pwr2;
unsigned long x;
/* get the two's compliment */
Exponentiation Performance
Exponent Bits
Modulus Bits
Base Bits
Exponentiation Time
66 MHz
80 MHz
1024
< 55 ms
< 45 ms
224
1024
< 12 ms
< 10 ms
160
1024
< 9 ms
< 7 ms
Exponentiator Register Summary
Register
Address
A[10:0]
Access
Description
Reset Value
K Register
0x200
R/W
K Value
00000000h
Reserved
0x201
R/W
Reserved
00000000h
Reserved
0x202
R/W
Reserved
00000000h
Reserved
0x203
R/W
Reserved
00000000h
Control & Status Register
0x204
R/W
Control and Status Register
00000000h
Number of Bits
0x205
R/W
Number of bits in the exponent Register
00000000h
Pointer Register
0x206
R/W
Pointer Register
00103210h
Operand RAM
0x080-0x0FF
R/W
Operand
N/A
相關PDF資料
PDF描述
VN-84-AR-1 9800 MHz - 10400 MHz RF/MICROWAVE SGL POLE TRIPLE THROW SWITCH, 1.7 dB INSERTION LOSS
VN-84-ARD-1 9800 MHz - 10400 MHz RF/MICROWAVE SGL POLE TRIPLE THROW SWITCH, 1.7 dB INSERTION LOSS
VN-84-AS-1 9800 MHz - 10400 MHz RF/MICROWAVE SGL POLE TRIPLE THROW SWITCH, 1.7 dB INSERTION LOSS
VN-86-AR-1 10000 MHz - 10500 MHz RF/MICROWAVE SGL POLE TRIPLE THROW SWITCH, 1.7 dB INSERTION LOSS
VN-86-ARD-1 10000 MHz - 10500 MHz RF/MICROWAVE SGL POLE TRIPLE THROW SWITCH, 1.7 dB INSERTION LOSS
相關代理商/技術參數(shù)
參數(shù)描述
VMS1177 制造商:CPI 制造商全稱:CPI 功能描述:Magnetron
VMS1197B 制造商:CPI 制造商全稱:CPI 功能描述:Magnetron
VMS128K8MB-100 制造商:未知廠家 制造商全稱:未知廠家 功能描述:x8 SRAM Module
VMS128K8MC-100 制造商:未知廠家 制造商全稱:未知廠家 功能描述:x8 SRAM Module
VMS128K8MF-100 制造商:未知廠家 制造商全稱:未知廠家 功能描述:x8 SRAM Module
發(fā)布緊急采購，3分鐘左右您將得到回復。

采購需求

(若只采購一條型號，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進入我的后臺，查看報價

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進入我的后臺，查看報價

*型號 *數(shù)量 廠商 批號 封裝
添加更多采購

我的聯(lián)系方式

*
*
*