HD64F7050 RENESAS [Renesas Technology Corp], HD64F7050 Datasheet - Page 241

• Manufacturer Part Number: HD64F7050
• Description: 32-Bit RISC Microcomputer SuperH RISC engine Family/
• Manufacturer: RENESAS [Renesas Technology Corp]

10.2.4
The timer control registers (TCR) are 8-bit registers. The ATU has ten TCR registers. one for each
channel.
Each TCR is an 8-bit readable/writable register that selects whether an internal clock or external
clock is used for channels 1 to 5.
When an internal clock is selected, TCR selects the value of " further scaled from clock ' scaled
with prescaler register 1 (PSCR1). Scaled clock " can be selected, for channels 1 to 10 only, from
on the rising edge.
When an external clock is selected (channels 1 to 5 only), TCR selects whether TCLKA or
TCLKB is used, and also performs edge selection.
Each TCR is initialized to H'00 by a power-on reset, and in hardware standby mode and software
standby mode.
Channel
1
2
3
4
5
6
7
8
9
10
', '/2, '/4, '/8, '/16, and '/32 (only ' is available for channel 0). Edge detection is performed
Timer Control Registers (TCR)
Abbreviation
TCR1
TCR2
TCR3
TCR4
TCR5
TCR6
TCR7
TCR8
TCR9
TCR10
Function
Internal clock/external clock selection
When internal clock is selected: Further scaling of clock ' scaled
with PSCR1, to create "
When external clock is selected: Selection of 2 external clocks,
selection of input edge
Further scaling of clock ' scaled with PSCR1, to create "
(internal clock only)
Further scaling of clock ' scaled with PSCR1, to create "
(internal clock only)
Rev. 5.00 Jan 06, 2006 page 221 of 818
Section 10 Advanced Timer Unit (ATU)
REJ09B0273-0500