Pinout and signal descriptions
28
NS9750 Hardware Reference
bist_en_n, pll_test_n, and scan_en_n

Table7 is a truth/termination table for bist_en_n, pll_test_n, and scan_en_n.

PCI interface

The PCI interface can be set to PCI host or PCI device (slave) using the pci_central_rsc_n

pin.

Note:

All output drivers for PCI meet the standard PCI driver specification.

Normal operation ARM debug
pll_test_n pull up pull up 10K recommended
bist_en_n pull down pull up 10K pullup = debug
2.4K pulldown = normal
scan_en_n pull down pull down 2.4K recommended

Table 7: bist_en_n, pll_test_n, & scan_en_n truth/termination table

Pin # Signal name U/D OD
(mA) I/O Description
J24 ad[0]1N/A I/O PCI time-multiplexed address/data bus
H26 ad[1]1N/A I/O PCI time-multiplexed address/data bus
J25 ad[2]1N/A I/O PCI time-multiplexed address/data bus
J26 ad[3]1N/A I/O PCI time-multiplexed address/data bus
K24 ad[4]1N/A I/O PCI time-multiplexed address/data bus
K25 ad[5]1N/A I/O PCI time-multiplexed address/data bus
K26 ad[6]1N/A I/O PCI time-multiplexed address/data bus
L24 ad[7]1N/A I/O PCI time-multiplexed address/data bus
L26 ad[8]1N/A I/O PCI time-multiplexed address/data bus
M24 ad[9]1N/A I/O PCI time-multiplexed address/data bus
M25 ad[10]1N/A I/O PCI time-multiplexed address/data bus
M26 ad[11]1N/A I/O PCI time-multiplexed address/data bus
Table 8: PCI interface pinout