AN2136SC Cypress Semiconductor Corp, AN2136SC Datasheet - Page 302
AN2136SC
Manufacturer Part Number
AN2136SC
Description
IC MCU 8051 8K RAM 24MHZ 44QFP
Manufacturer
Cypress Semiconductor Corp
Series
EZ-USB®r
Datasheet
1.AN2131SC.pdf
(334 pages)
Specifications of AN2136SC
Applications
USB Microcontroller
Core Processor
8051
Program Memory Type
ROMless
Controller Series
AN213x
Ram Size
8K x 8
Interface
I²C, USB
Number Of I /o
8
Voltage - Supply
3 V ~ 3.6 V
Operating Temperature
0°C ~ 70°C
Mounting Type
Surface Mount
Package / Case
44-QFP
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Other names
428-1309
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C.2.5 Mode 2
Mode 2 operation is the same for Timer 0 and Timer 1. In mode 2, the timer is configured as
an 8-bit counter, with automatic reload of the start value. The LSB register (TL0 or TL1) is the
counter and the MSB register (TH0 or TH1) stores the reload value.
As illustrated in Figure C-2., mode 2 counter control is the same as for mode 0 and mode 1.
However, in mode 2, when TLn increments from FFh, the value stored in THn is reloaded into
TLn.
C - 6
T0 (or T1) pin
(or INT1# pin)
CLK24
INT0# pin
GATE
TR0 (or TR1)
Divide by 12
Divide by 4
Appendix C: 8051 Hardware Description
Figure C-2. Timer 0/1 - Mode 2
1
0
T0M (or T1M)
C/ T
0
1
CLK
0
0
TL0 (or TL1)
TH0 (or TH1)
TF0 (or TF1)
(Timer 1 only)
To Serial Port
EZ-USB TRM v1.9
7
7
RELOAD
INT
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