LAN9311-NU SMSC, LAN9311-NU Datasheet - Page 111

• Manufacturer Part Number: LAN9311-NU
• Description: IC ETHER SW 2PRT 16BIT 128-VTQFP
• Manufacturer: SMSC
• Type: Two Port Managed Ethernet Switchr

Specifications of LAN9311-NU

• Controller Type: Ethernet Switch Controller
• Interface: Serial EEPROM
• Voltage - Supply: 3.3V
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 128-TQFP, 128-VQFP
• Product: Ethernet Switches
• Number Of Transceivers: 1
• Standard Supported: 802.3, 802.3u
• Data Rate: 10 MB, 100 MB
• Supply Voltage (max): 3.3 V
• Supply Voltage (min): 0 V
• Maximum Operating Temperature: + 70 C
• Ethernet Connection Type: 10 Base-T, 100 Base-TX
• Minimum Operating Temperature: 0 C
• Mounting Style: SMD/SMT
• For Use With: 638-1076 - EVALUATION BOARD LAN9311-NU
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Current - Supply: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: 638-1075

Two Port 10/100 Managed Ethernet Switch with 16-Bit Non-PCI CPU Interface
Datasheet
SMSC LAN9311/LAN9311i
8.5.8
D[15:0] (INPUT)
PIO Writes
PIO writes are used for all LAN9311/LAN9311i write cycles. PIO writes can be performed using Chip
Select (nCS) or Write Enable (nWR). A PIO write cycle begins when both nCS and nWR are asserted.
The cycle ends when either or both nCS and nWR are de-asserted. Either or both of these control
signals must de-assert between cycles for the period specified in
Values,” on page
control signals must be de-asserted between cycles for the period specified. The PIO write cycle is
illustrated in the functional timing diagram in
The END_SEL signal has the same timing characteristics as the address lines.
Please refer to
for PIO write operations.
nCS, nWR
END_SEL
A[x:1]
Figure 8.7 Functional Timing for PIO Write Operation
Section 15.5.8, "PIO Write Cycle Timing," on page 451
451. They may be asserted and de-asserted in any order. Either or both of these
DATASHEET
111
Figure
VALID
VALID
8.7.
VALID
Table 15.12, “PIO Write Cycle Timing
for the AC timing specifications
Revision 1.7 (06-29-10)