5802-DS02-R datasheet(26/50 Pages) BOARDCOM

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■ BCM5802

Production Specification

07/03/02

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Page 18 Memory Structures

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5802-DS03-405-R

typedef struct RNG_SHA1_CtxCmdBuf_struct {

u16 total_command_structure_length; /* 64 bytes long as required by PCI access */

u16 operation_type; /* RNG-SHA1 modes for RNG (0x42)*/

} RNG_SHA1_CtxCmdBuf

/*Modular Addition Atomic Operation*/

typedef struct ModAdd_CtxCmdBuf_struct {

u16 total_command_structure_length;

u16 operation_type; /* ModAdd (0x43)*/

u16 reserved;

u16 modulus_length; /* Modulus N Length in bits */

u32 N[(modulus_length <= 512)? 16 : (modulus_length <= 768)? 24 : 32]; /* Modulus N */

} ModAdd_CtxCmdBuf;

/*Modular Subtraction Atomic Operation*/

typedef struct ModSub_CtxCmdBuf_struct {

u16 total_command_structure_length;

u16 operation_type; /* ModSub (0x44) */

u16 reserved;

u16 modulus_length; /* Modulus N Length in bits */

u32 N[(modulus_length <= 512)? 16 : (modulus_length <= 768)? 24 : 32]; /* Modulus N

} ModSub_CtxCmdBuf;

/*Modular Multiplication Atomic Operation*/

typedef struct ModMul_CtxCmdBuf_struct {

u16 total_command_structure_length;

u16 operation_type; /* ModMul (0x45) */

u16 reserved;

u16 modulus_length; /* Modulus N Length in bits */

u32 N[(modulus_length <= 512)? 16 : (modulus_length <= 768)? 24 : 32]; /* Modulus N */

} ModMul_CtxCmdBuf;

/*Modular Reduction Atomic Operation */

typedef struct ModRem_CtxCmdBuf_struct {

u16 total_command_structure_length;

u16 operation_type; /* ModRem (0x46) */

u16 message_length; /* Message M Length in bits */

u16 modulus_length; /* Modulus N Length in bits */

u32 N[(modulus_length <= 512)? 16 : (modulus_length <= 768)? 24 : 32]; /* Modulus N */

} ModRem_CtxCmdBuf;

/*Modular Exponentiation Atomic Operation */

typedef struct ModExp_CtxCmdBuf_struct {

u16 total_command_structure_length;

u16 operation_type; /* ModExp (0x47) */

u16 exponent_length; /* Exponent E Length in bits */

u16 modulus_length; /* Modulus N Length in bits */

u32 N[(modulus_length <= 512)? 16 : (modulus_length <= 768)? 24 : 32]; /* Modulus N */

} ModExp_CtxCmdBuf;

/*Modular Inverse Atomic Operation */

typedef struct ModInv_CtxCmdBuf_struct {

u16 total_command_structure_length;

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