MOD5234-100IR NetBurner Inc, MOD5234-100IR Datasheet - Page 599

• Manufacturer Part Number: MOD5234-100IR
• Description: MOD5234 10/100 ETHERNET MODULE
• Manufacturer: NetBurner Inc
• Type: Controllers & Processorsr

Specifications of MOD5234-100IR

• Interface: I²C, SPI, UART
• Voltage - Supply: 2.5V
• Mounting Type: Surface Mount
• Package / Case: Module
• Product: Modules
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Data Format: -
• Baud Rates: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: Q4483564

28.2.10 MDHA Message Digest Registers 1 (MDx1)
The MDHA message digest registers 1 consist of five 32-bit digest registers (MDA1, MDB1,
MDC1, MDD1, and MDE1). These registers store the OPAD resulted digest to be used for the
second hash operation in the HMAC or EHMAC mode. This digest is written directly to the
message digest registers 0 after the first hash has been completed. The registers are write only and
any attempts to read from them will always return the value zero.
28.3
The MDHA module consists of three sub-blocks: the FIFO, MDHA Top Control block, and the
MDHA Logic block. A block level diagram of the MDHA module is shown in
Freescale Semiconductor
Address
Reset 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
W
R 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
Functional Description
31
IPSBAR + 0x19_0078 (MDC1); IPSBAR + 0x19_007C (MDD1); IPSBAR + 0x19_0080 (MDE1)
Figure 28-10. MDHA Message Digest Registers 1 (MDx1)
Internal Bus Clock (f
Address/Data
IPSBAR + 0x19_0070 (MDA1); IPSBAR + 0x19_0074 (MDB1);
Figure 28-11. MDHA Block Diagram
sys/2
MDHA Logic
)
MCF5235 Reference Manual, Rev. 2
Auto-padder
Interface
Control
MDA1, MDB1, MDC1, MDD1, MDE1
MDHA Top Control
FIFO (16x32bit)
Address Decoder
Engine Control
Status Interrupt
Hashing
Hashing
Engine
To Interrupt
Controller
Figure
Functional Description
28-11.
0
28-13