SM39R16A2 Datasheet, PDF (44/82 Pages) SyncMOS Technologies,Inc – Dual 16-bit Data Pointers

SM39R16A2/SM39R12A2/SM39R08A2
8-Bit Micro-controller
16KB/12KB/8KB with ISP Flash
& 256B RAM embedded
Fig. 8-3: Transmit mode 1
8.1.3 Mode 2
Fig. 8-4: Receive mode 1
This mode is similar to Mode 1, with two differences. The baud rate is fixed at 1/32 (SMOD=1) or 1/64(SMOD=0)
of oscillator frequency and 11 bits are transmitted or received: a start bit (0), 8 data bits (LSB first), a programmable 9^th
bit, and a stop bit (1). The 9^th bit can be used to control the parity of the serial interface: at transmission, bit TB8 in SCON
is output as the 9^th bit, and at receive, the 9^th bit affects RB8 in Special Function Register SCON.
8.1.4 Mode 3
The only difference between Mode 2 and Mode 3 is that in Mode 3 either internal baud rate generator or timer 1 can
be use to specify baud rate.
Fig. 8-5: Transmit modes 2 and 3
Fig. 8-6: Receive modes 2 and 3
Specifications subject to change without notice contact your sales representatives for the most recent information.
ISSFD-M057
44
Ver.H SM39R16A2 07/2012