dp83840a National Semiconductor Corporation, dp83840a Datasheet - Page 35

• Manufacturer Part Number: dp83840a
• Description: 10/100 Mb/s Ethernet Physical Layer
• Manufacturer: National Semiconductor Corporation

3.0 Functional Description
(Continued)
MANUFACTURER CODE
IDCODE REGISTER
CORE LOGIC
DATA
BOUNDARY SCAN REGISTER
MUX
(CELLS ARE ANY ONE OF BC1 THRU BC6)
TDO DRIVER
TDI
DI
PAD LOGIC
MUX
TDO
BYPASS REGISTER
INSTR. PRELOAD
INSTR. REGISTER
DATA
REGISTER
GATED DR-CLOCK AND MODE SIGNALS
SELECT
INSTR. REGISTER
AND
IR-CLOCKS
DR CLOCK GATING
LOGIC
RESET
DR-CLOCKS
TMS
SELECT
TAP
TCK
~TCK
CONTROLER
ENABLE
TRST
FIGURE 18. TIEEE 1149.1 Architecture
Version A
National Semiconductor
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