Renesas Hitachi H8S/2191, Hardware Manual

Page: 334 / 1065

Rev. 2.0, 11/00, page 307 of 1037
Bit 5: Starting the Remote Controlled Operation (ST)
This bit works to start the remote controlled operations.
When this bit is set to 1, clock signal is supplied to the TMJ-1 to start signal transmissions.
When this bit is cleared to 0, clock supply stops to discontinue the operation. The ST bit will be
valid under the remote controlling mode, namely, when the Bit 0 (T/R bit) is 1 and the Bit 4
(8/16 bit) is 0.
Under other modes than the remote controlling mode, it will be fixed to 0. When a shift to the
low power consumption mode is made during remote controlled operation, the ST bit will be
cleared to 0. When resuming operation after returning to the active mode, write 1.
Bit 5
ST Description
0 Works to stop clock signal supply to the TMJ-1 under the remote controlling mode
(Initial value)
1 Works to supply clock signal to the TMJ-1 under the remote controlling mode
Bit 4: Switching Over Between 8-bit/16-bit Operations (8/16)
This bit works to choose if using the Timer J as two units of 8-bit timer/counter or if using it as a
single unit of 16-bit timer/counter. Even under 16-bit operations, TMJ1I interrupt requests from
the TMJ-1 will be valid.
Bit 4
8/16 Description
0 Makes the TMJ-1 and TMJ-2 operate separately (Initial value)
1 Makes the TMJ-1 and TMJ-2 operate altogether as 16-bit timer/counter