AN2131-DK001 Cypress Semiconductor Corp, AN2131-DK001 Datasheet - Page 300

• Manufacturer Part Number: AN2131-DK001
• Description: KIT EZ-USB DEVELOPMENT BOARD
• Manufacturer: Cypress Semiconductor Corp

Specifications of AN2131-DK001

• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Other names: 428-1333

C - 4
TMOD.7
TMOD.6
TMOD.5
TMOD.4
TMOD.3
TMOD.2
TMOD.1
TMOD.0
Bit
Appendix C: 8051 Hardware Description
Table C-2. TMOD Register - SFR 89h
GATE - Timer 1 gate control. When GATE = 1, Timer 1 will
clock only when INT1# = 1 and TR1 (TCON.6) = 1. When
GATE = 0, Timer 1 will clock only when TR1 = 1, regardless
of the state of INT1#.
clocked by CLK24/4 or CLK24/12, depending on the state of
T1M (CKCON.4). When
the T1 pin.
M1 - Timer 1 mode select bit 1.
M0 - Timer 1 mode select bit 0, decoded as:
M1 M0
0
0
1
1
GATE - Timer 0 gate control, When GATE = 1, Timer 0 will
clock only when INT0 = 1 and TR0 (TCON.4) = 1. When
GATE = 0, Timer 0 will clock only when TR0 = 1, regardless
of the state of INT0.
clocked by CLK24/4 or CLK24/12, depending on the state of
T0M (CKCON.3). When
the T0 pin.
M1 - Timer 0 mode select bit 1.
M0 - Timer 0 mode select bit 0, decoded as:
M1 M0
0
0
1
1
C/ T
C/ T
0
1
0
1
0
1
0
1
- Counter/Timer select. When
- Counter/Timer select. When
Mode
Mode 0 : 13-bit counter
Mode 1 : 16-bit counter
Mode 2 : 8-bit counter with auto-reload
Mode 3 : Timer 1 stopped
Mode
Mode 0 : 13-bit counter
Mode 1 : 16-bit counter
Mode 2 : 8-bit counter with auto-reload
Mode 3 : Two 8-bit counters
Function
C/ T
C/ T
= 1, Timer 1 is clocked by
= 1, Timer 0 is clocked by
C/ T
C/ T
= 0, Timer 1 is
= 0, Timer 0 is
EZ-USB TRM v1.9