Cypress PSoC CY8CTMG20 Series, Техническое справочное руководство

Страница: 164 / 308

164 PSoC CY8CTMG20x and CY8CTST200 TRM, Document No. 001-53603 Rev. *C
Programmable Timer
19.2.3 PT2_CFG Register
The Programmable Timer Configuration Register
(PT2_CFG) configures the PSoC’s programmable timer.
Bit 2: CLKSEL. This bit determines if the timer runs on the
32 kHz clock or CPU clock. If the bit is set to 1'b1, the timer
runs on the CPU clock, otherwise, the timer runs on the 32
kHz clock.
Bit 1: One Shot. This bit determines if the timer runs in
one-shot mode or continuous mode. In one-shot mode the
timer completes one full count cycle and terminates. Upon
termination, the START bit in this register is cleared. In con-
tinuous mode, the timer reloads the count value each time
upon completion of its count cycle and repeats.
Bit 0: START. This bit starts the timer counting from a full
count. The full count is determined by the value loaded into
the data registers. This bit is cleared when the timer is run-
ning in one-shot mode upon completion of a full count cycle.
For additional information, refer to the PT2_CFG register on
page 225 .
19.2.4 PTx_DATA0 Register
The Programmable Timer Data Register 0 (PT0_DATA0,
PT1_DATA0, PT2_DATA0) holds the lower 8 bits of the pro-
grammable timer’s count value.
Bits 7 to 0: DATA[7:0].
This is the lower byte of a 16-bit
timer. The upper byte is in the corresponding PTxDATA1
register.
For additional information, refer to the PT0_DATA0 register
on page 223 , PT1_DATA0 register on page 223 and
PT2_DATA0 register on page 223 .
19.2.5 PTx_DATA1 Register
The Programmable Timer Data Register 1 (PT0_DATA1,
PT1_DATA1, PT2_DATA1) holds the 8 bits of the program-
mable timer’s count value for the device
Bits 7 to 0: DATA[7:0].
This is the upper byte of a 16-bit
timer. The lower byte is in the corresponding PTx_DATA0
register.
For additional information, refer to the PT0_DATA1 register
on page 222 , PT1_DATA1 register on page 222 , and
PT2_DATA1 register on page 222 .
Address Name Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 Access
0,B6h PT2_CFG CLKSEL One Shot START RW : 0
Address Name Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 Access
0,B2h PT0_DATA0 DATA[7:0] RW : 00
0,B5h PT1_DATA0 DATA[7:0] RW : 00
0,B8h PT2_DATA0 DATA[7:0] RW : 00
Address Name Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 Access
0,B1h PT0_DATA1 DATA[7:0] RW : 00
0,B4h PT1_DATA1 DATA[7:0] RW : 00
0,B7h PT2_DATA1 DATA[7:0] RW : 00
[+] Feedback