Maxim Integrated MAXQ7666 - Manual (Page 248)

MAXQ7665/MAXQ7666 User’s Guide
7-13
7.2.3 Type 2 Reload Registers
The MAXQ7665/MAXQ7666 timer/counter module registers T2Rx (timer reload) and T2RHx (timer reload high), where x = 0, 1, and
2, are described here.
7.2.3.1 Type 2 Timer/Counter Reload Register (T2Rx)
Register Description: Type 2 Timer/Counter Reload Register
Register Name: T2Rx (x = 0, 1, 2)
Register Address:
T2R0: Module 02h, Index 0Ah
T2R1: Module 02h, Index 0Eh
T2R2: Module 03h, Index 0Ah
Bits 15 to 0: Type 2 Timer/Counter Reload Register (T2Rx.15 to T2Rx.0). This 16-bit register holds the reload value for the timer.
When operating in 16-bit mode (T2MD = 0), the full 16 bits are read/write accessible. If the dual 8-bit mode of operation is selected,
the upper byte of T2Rx is inaccessible. T2Rx reads while in the dual 8-bit mode return 00h as the high byte and writes to the upper
byte of T2Rx are blocked. A separate T2RHx register is provided to facilitate high-byte access for the dual 8-bit mode.
Note: For convenience, the lower byte of T2Rx (T2Rx.7–T2Rx.0) is referred to as T2RLx. Unlike T2RHx, there is no separate T2RLx reg-
ister and the low byte is always accessed through T2Rx.
Bit # 15 14 13 12 11 10 9 8
Name T2Rx.15 T2Rx.14 T2Rx.13 T2Rx.12 T2Rx.11 T2Rx.10 T2Rx.9 T2Rx.8
Reset 0 0 0 0 0 0 0 0
Access rw rw rw rw rw rw rw rw
Bit # 7 6 5 4 3 2 1 0
Name T2Rx.7 T2Rx.6 T2Rx.5 T2Rx.4 T2Rx.3 T2Rx.2 T2Rx.1 T2Rx.0
Reset 0 0 0 0 0 0 0 0
Access rw rw rw rw rw rw rw rw
r = read, w = write
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