MOD5234-100IR NetBurner Inc, MOD5234-100IR Datasheet - Page 163

• 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

sign of this error count determines the direction taken by the calibration D/A to update the
calibration current. After obtaining the error count for the present iteration, both counters are
cleared. The stored count of COUNT0 is preserved while a new feedback count is obtained, and
the process to determine the error count is repeated. The calibration system repeats this process
eight times, once for each bit of the calibration D/A.
After the last decision is made the CALDONE bit of the SYNSR is set. If an error occurs during
the calibration routine, then CALPASS is immediately cleared. If the routine completed
successfully then CALPASS remains set.
Figure 7-7
Figure 7-8
Freescale Semiconductor
Reference Counter
shows a flow chart showing the steps taken by the calibration circuit.
shows a block diagram of the calibration circuitry and its associated registers.
ICO Counter
Control
Figure 7-7. FM Auto-Calibration Data Flow
13
MCF5235 Reference Manual, Rev. 2
Count 0
A
13
A–B=
delta
count
10
B
13
Expected (EXP)
C
C–D=error count
10
D
Error (ERR)
Functional Description
10
7-19