TMXF28155 Supermapper
155/51 Mbits/s SONET/SDH x28/x21 DS1/E1
Data Sheet
June 2002
16 Microprocessor Interface Functional Description (continued)
16.7 Supermapper Global Interrupt Status and Control
The Supermapper provides two hardware interrupt output pins: one global (INTN pin AB24) and one for the
SONET automatic protection switching (APS_INTN pin AC25). Both interrupt pins are active-low and are open-
drain outputs to allow a wired OR with complementary devices.
Interrupt status for major functional blocks are summarized in Table 73 on page 66 and maskable in Table 74.
16.8 Global Control
Several registers in this block provide global control of Supermapper features. The register descriptions are selfex-
planatory, but some highlights follow:
■ Global enabling and powering down of major functional blocks is shown in Table 81 on page 73.
■ Software resets for major functional blocks are shown in Table 76 on page 68.
■ Global reset of the Supermapper is controlled with SMPR_SWRS, bit 8, in Table 75 on page 68.
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Agere Systems Inc.
ETC [ ETC ]
