DP83916VF National Semiconductor, DP83916VF Datasheet - Page 51

• Manufacturer Part Number: DP83916VF
• Description: IC CTRLR ORIENT NETWK IN 132PQFP
• Manufacturer: National Semiconductor
• Series: SONIC™r

Specifications of DP83916VF

• Controller Type: Network Interface Controller (NIC)
• Interface: Bus
• Mounting Type: Surface Mount
• Package / Case: 132-MQFP, 132-PQFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Current - Supply: -
• Voltage - Supply: -
• Operating Temperature: -
• Other names: *DP83916VF

Figure 5-4 shows a typical interface to the Motorola style
5 0 Bus Interface
5 3 SYSTEM CONFIGURATION
Any device that meets the SONIC-16 interface protocol and
electrical requirements (timing threshold and loading) can
be interfaced to SONIC-16 Since two bus protocols are pro-
vided via the BMODE pin the SONIC-16 can interface di-
rectly to most microprocessors Figure 5-3 shows a typical
interface to the National Intel style bus (BMODE
bus (BMODE
The BMODE pin also controls byte ordering
BMODE
BMODE
e
e
1 big endian byte ordering is selected and when
0 little endian byte ordering is selected
e
1)
(Continued)
FIGURE 5-3 SONIC-16 to NS32532 Interface Example
e
0) and
When
51
5 4 BUS OPERATIONS
There are two types of system bus operations 1) SONIC-16
as a slave and 2) SONIC-16 as a bus master When
SONIC-16 is a slave (e g a CPU accessing SONIC-16 reg-
isters) all transfers are non-DMA When SONIC-16 is a bus
master (e g SONIC-16 accessing receive or transmit buff-
er descriptor areas) all transfers are block transfers using
SONIC-16’s on-chip DMA This section describes the
SONIC-16 bus operations Pay special attention to all sec-
tions labeled as ‘‘Note’’ These conditions must be met for
proper bus operation
TL F 11722 – 25