ADSP-BF522BBCZ-3A View Datasheet(PDF) - Analog Devices
Part Name
Description
MFG CO.
'ADSP-BF522BBCZ-3A' PDF : 88 Pages View PDF
ADSP-BF522/ADSP-BF523/ADSP-BF524/ADSP-BF525/ADSP-BF526/ADSP-BF527
Table 62. 10/100 Ethernet MAC Controller Timing: MII/RMII Asynchronous Signal
VDDEXT
1.8V Nominal
VDDEXT
2.5 V or 3.3V Nominal
Parameter
Min
Max
Min
Max
Unit
Timing Requirements
tECOLH
tECOLL
tECRSH
tECRSL
COL Pulse Width High1
COL Pulse Width Low1
CRS Pulse Width High2
CRS Pulse Width Low2
tETxCLK × 1.5
tETxCLK × 1.5
ns
tERxCLK × 1.5
tERxCLK × 1.5
tETxCLK × 1.5
tETxCLK × 1.5
ns
tERxCLK × 1.5
tERxCLK × 1.5
tETxCLK × 1.5
tETxCLK × 1.5
ns
tETxCLK × 1.5
tETxCLK × 1.5
ns
1 MII/RMII asynchronous signals are COL and CRS. These signals are applicable in both MII and RMII modes. The asynchronous COL input is synchronized separately to
both the ETxCLK and the ERxCLK, and the COL input must have a minimum pulse width high or low at least 1.5 times the period of the slower of the two clocks.
2 The asynchronous CRS input is synchronized to the ETxCLK, and the CRS input must have a minimum pulse width high or low at least 1.5 times the period of ETxCLK.
MIICRS, COL
tECRSH
tECOLH
tECRSL
tECOLL
Figure 40. 10/100 Ethernet MAC Controller Timing: Asynchronous Signal
Table 63. 10/100 Ethernet MAC Controller Timing: MII Station Management
ADSP-BF522/ADSP-BF524/
ADSP-BF526
ADSP-BF523/ADSP-BF525/
ADSP-BF527
Parameter1
VDDEXT
1.8V Nominal
VDDEXT
2.5 V or 3.3V
Nominal
Min Max Min
Max
VDDEXT
1.8V Nominal
VDDEXT
2.5 V or 3.3V
Nominal
Min Max Min
Max
Unit
Timing Requirements
tMDIOS
MDIO Input Valid to MDC Rising Edge 11.5
11.5
10
10
ns
(Setup)
tMDCIH
MDC Rising Edge to MDIO Input Invalid 11.5
11.5
10
10
ns
(Hold)
Switching Characteristics
tMDCOV
MDC Falling Edge to MDIO Output Valid
25
25
25
25
ns
tMDCOH
MDC Falling Edge to MDIO Output –1
–1
Invalid (Hold)
–1
–1
ns
1 MDC/MDIO is a 2-wire serial bidirectional port for controlling one or more external PHYs. MDC is an output clock whose minimum period is programmable as a multiple
of the system clock SCLK. MDIO is a bidirectional data line.
Rev. D | Page 70 of 88 | July 2013
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