The SCANSTA112 extends the IEEE Std. 1149.1 test bus into a multidrop test bus environment. The advantage of a multidrop approach over a single serial scan chain is improved test throughput and the ability to remove a board from the system and retain test access to the remaining modules. Each SCANSTA112 supports up to 7 local IEEE1149.1 scan chains which can.
n True IEEE 1149.1 hierarchical and multidrop addressable capability n The 8 address inputs support up to 249 unique slot addresses, an Interrogation Address, Broadcast Address, and 4 Multi-cast Group Addresses (address 000000 is reserved) 20051250 FIGURE 1. Typical use of SCANSTA112 for board-level management of multiple scan chains. © 2004 National Semiconductor Corporation DS200512 www.national.com SCANSTA112 20051251 FIGURE 2. Example of SCANSTA112 in a multidrop addressable backplane. Introduction The SCANSTA112 is the third device in a series that enable multi-drop address and m.
No. | Partie # | Fabricant | Description | Fiche Technique |
---|---|---|---|---|
1 | SCANSTA111 |
National Semiconductor |
Enhanced SCAN bridge Multidrop Addressable IEEE 1149.1 (JTAG) Port | |
2 | SCANSTA111 |
ETCTI |
SCANSTA111 Enhanced SCAN Bridge Multidrop Addressable IEEE 1149.1 (JTAG) Port (Rev. K) | |
3 | SCANSTA101 |
National Semiconductor |
Low Voltage IEEE 1149.1 STA Master | |
4 | SCANSTA101 |
ETCTI |
SCANSTA101 Low Voltage IEEE 1149.1 System Test Access (STA) Master (Rev. J) | |
5 | SCANSTA476 |
National Semiconductor |
Eight Input IEEE 1149.1 Analog Voltage Monitor | |
6 | SCANSTA476 |
ETCTI |
SCANSTA476 Eight Input IEEE 1149.1 Analog Voltage Monitor (Rev. G) | |
7 | SCAN12100 |
National Semiconductor |
CPRI SerDes | |
8 | SCAN15MB200 |
ETCTI |
SCAN15MB200 Dual 1.5 Gbps 2:1/1:2 LVDS Mux/Buffer w/Pre-Emphasis IEEE 1149.6 (Rev. E) | |
9 | SCAN16512 |
National Semiconductor |
Low Voltage Universal 16-bit IEEE 1149.1 Bus Transceiver | |
10 | SCAN16602 |
National Semiconductor |
Low Voltage Universal 16-bit IEEE 1149.1 Bus Transceiver | |
11 | SCAN182245A |
Fairchild Semiconductor |
Non-Inverting Transceiver | |
12 | SCAN182245A |
National Semiconductor |
Non-Inverting Transceiver |