TMP92CF26AXBG Toshiba, TMP92CF26AXBG Datasheet - Page 608

• Manufacturer Part Number: TMP92CF26AXBG
• Description: Microcontrollers (MCU) TLCS-900/H1 ROMLESS 144KB RAM
• Manufacturer: Toshiba

Specifications of TMP92CF26AXBG

• Processor Series: TLCS-900
• Core: 900/H
• Data Bus Width: 16 bit
• Program Memory Type: ROM
• Program Memory Size: 8 KB
• Data Ram Size: 144 KB
• Interface Type: I2C, I2S, UART, USB
• Maximum Clock Frequency: 80 MHz
• Number Of Programmable I/os: 136
• Number Of Timers: 10
• Maximum Operating Temperature: + 50 C
• Mounting Style: SMD/SMT
• Package / Case: FBGA-228
• Development Tools By Supplier: BM1040R0A, BM1055R0B, SW96CN0-ZCC, SW00MN0-ZCC
• Minimum Operating Temperature: 0 C
• On-chip Adc: 10 bit, 6 Channel
• Lead Free Status / Rohs Status: Details

3.22.3
3.22.3.1
low-speed clock (32.768KHz) and outputs the signals from the MLDALM pin.
Operational Description
The Melody function generates signals of any frequency (4Hz-5461Hz) based on a
The melody tone can easily be heard by connecting an external loud speaker.
(Operation)
(Formula for calculating melody waveform frequency)
(Example program)
(Refer: Basic musical scale setting table)
to be output from MLDALM. The melody output frequency must then be set to 12-bit
register MELFH, MELFL.
Melody generator
MELALMC<MELALM> must first be set as 1 in order to select the melody waveform
The following are examples of settings and calculations of melody output frequency.
Melody output waveform
Setting value for melody
(Note: N = 1~4095 (001H~FFFH), 0 is not acceptable)
When outputting an “A” musical note (440Hz)
Scale
C
D
G
C
E
F
A
B
LD
LD
LD
Frequency
(MELALMC), −−XXXXX1B
(MELFL), 23H
(MELFH), 80H
[Hz]
264
297
330
352
396
440
495
528
92CF26A-607
f
N = (16384/ f
Register
Value: N
MLD
03CH
02DH
01DH
035H
030H
027H
023H
01FH
[Hz] = 32768/ (2 × N + 4)
MLD
; Select melody waveform
; N = 16384/440 − 2 = 35.2 = 023H
; Start to generate waveform
) − 2
@fs = 32.768 [kHz]
TMP92CF26A
2007-11-21