Jtag Interface Compatibility Design; Detailed Interface Differences - Huawei MU509 Hardware Migration Manual

HUAWEI 30 mm × 30 mm LGA Module
Hardware Migration Guide
Figure 2-19 Recommended power circuit of MU509/MU609/ME209u-
526/ME909u/MU709/ME909s module
Figure 2-20 Recommended power circuit of MC509 module

2.8 JTAG Interface Compatibility Design

2.8.1 Detailed Interface Differences

Please note that JTAG level (CMOS 2.6 V) of MC509 is different from JTAG level
(CMOS 1.8 V) of MU509/MU609/ME209u-526/ME909u/MU709/ME909s.
Table 2-15 Differences of the JTAG signal
Pin Interface Name
No.
30 JTAG JTAG_TMS
36 JTAG_TRST
_N
42 JTAG_TCK
Issue 08 (2016-12-12)
Module
(DCE)
VBAT
100 nF
MC509 MU509
CMOS 2.6 V CMOS 1.8 V
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Copyright © HUAWEI Technologies Co., Ltd.
10 μF
220 μF
MU609 ME209u-
526
LGA Interface Differences
VBAT
ME909u MU709 ME909s
39