Texas Instruments TMS320C3x - Manual (Page 383)

Timers
12-4
Figure 12–2. Memory-Mapped Timer Locations
Timer0 global control†
Timer0 counter‡
Timer0 period‡
Timer1 global control†
Timer1 counter‡
Timer1 period‡
808020h
808034h
808024h
808028h
808030h
808038h
‡See Section 12.1.4
†See Section 12.1.3
12.1.3 Timer Global-Control Register
The timer global-control register is a 32-bit register that contains the global and
port control bits for the timer module. Figure 12–3 shows the format of the
timer global-control register. Bits 3 – 0 are the port control bits; bits
11 – 6 are the timer global-control bits. At reset, all bits are set to 0 except for
DATIN (which is set to the value read on TCLK). Table 12–1 describes the
timer global-control register bits, their names, and functions.
Figure 12–3. Timer Global-Control Register
31 16 15 12 11 10 9 8 7 6 5 4 3 2 1 0
xx xx TSTAT INV CLKSRC C/P HLD GO xx xx DATIN DATOUT I/O FUNC
R R/W R/W R/W R/W R/W R R/W R/W R/W
Notes: 1) R = read, W = write
2) xx = reserved bit, read as 0