TC1796
Peripheral Units (Vol. 2 of 2)
General Purpose Timer Array (GPTA)
User’s Manual 24-92 V2.0, 2007-07
GPTA, V2.0
An LTC group combines eight LTC cells with its input and output lines. This results in
eight LTC groups, LTCG0 to LTCG7.
A GTC group combines eight GTC cells with its input and output lines. This results in
four GTC groups, GTCG0 to GTCG3.
An I/O group combines eight GPTA I/O lines connected to bi-directional device pins with
its input and output lines. This results in seven I/O groups, IOG0 to IOG6, supporting
56 I/O lines.
An Output group combines eight GPTA output lines connected to device pins as an
output. This results in seven output groups, OG0 to OG6, supporting 56 output lines.
The Clock group is a group that combines the eight clock bus output signals CLK[7:0]
generated by the clock distribution unit.
The FPC/INT group is a group that combines the six level output signals SOL[5:0] of the
FPCs with two external input lines INT[1:0] of the GPTA module.
The PDL/INT group is a group that combines the four PDL output lines of the PDL bus
with four external input lines INT[3:0] of the GPTA module.
Table 24-8 Group to I/O Line/Cell Assignment
Group/Module Cell/Line Input Output
LTC Groups
LTCG0 LTC[07:00] LTC[07:00]IN LTC[07:00]OUT
LTCG1 LTC[15:08] LTC[15:08]IN LTC[15:08]OUT
LTCG2 LTC[23:16] LTC[23:16]IN LTC[23:16]OUT
LTCG3 LTC[31:24] LTC[31:24]IN LTC[31:24]OUT
LTCG4 LTC[39:32] LTC[39:32]IN LTC[39:32]OUT
LTCG5 LTC[47:40] LTC[47:40]IN LTC[47:40]OUT
LTCG6 LTC[55:48] LTC[55:48]IN LTC[55:48]OUT
LTCG7 LTC[63:56] LTC[63:56]IN LTC[63:56]OUT
GTC Groups
GTCG0 GTC[07:00] GTC[07:00]IN GTC[07:00]OUT
GTCG1 GTC[15:08] GTC[15:08]IN GTC[15:08]OUT
GTCG2 GTC[23:16] GTC[23:16]IN GTC[23:16]OUT
GTCG3 GTC[31:24] GTC[31:24]IN GTC[31:24]OUT
I/O Groups
IOG0 – IN[07:00] OUT[07:00]
IOG1 – IN[15:08] OUT[15:08]
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