diff options
author | AJR <ajrhacker@users.noreply.github.com> | 2017-10-25 12:12:28 -0400 |
---|---|---|
committer | AJR <ajrhacker@users.noreply.github.com> | 2017-10-25 12:12:28 -0400 |
commit | e5a8a47af70fd942c4216005f62af8980b64e211 (patch) | |
tree | 09fdbdbbb033c9c2dd78004cda7d346d265084c0 | |
parent | 5b45e09d6ba55c0044fbe6b22e23ae9a789e6a6c (diff) |
piggypas.cpp: More documentation (nw)
-rw-r--r-- | src/mame/drivers/piggypas.cpp | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/src/mame/drivers/piggypas.cpp b/src/mame/drivers/piggypas.cpp index 90751e9d37c..121150f25a7 100644 --- a/src/mame/drivers/piggypas.cpp +++ b/src/mame/drivers/piggypas.cpp @@ -58,6 +58,7 @@ WRITE8_MEMBER(piggypas_state::ctrl_w) WRITE8_MEMBER(piggypas_state::mcs51_tx_callback) { + // Serial output driver is UCN5833A output().set_digit_value(m_digit_idx++, BITSWAP8(data,7,6,4,3,2,1,0,5) & 0x7f); } @@ -126,7 +127,7 @@ HD44780_PIXEL_UPDATE(piggypas_state::piggypas_pixel_update) static MACHINE_CONFIG_START( piggypas ) /* basic machine hardware */ - MCFG_CPU_ADD("maincpu", I80C31, XTAL_8_448MHz) // OKI M80C31 + MCFG_CPU_ADD("maincpu", I80C31, XTAL_8_448MHz) // OKI M80C31F or M80C154S MCFG_CPU_PROGRAM_MAP(piggypas_map) MCFG_CPU_IO_MAP(piggypas_io) MCFG_MCS51_SERIAL_TX_CB(WRITE8(piggypas_state, mcs51_tx_callback)) |